In this task, you're given a question, a context passage, and four options which are terms from the passage. After reading a passage, you will get a brief understanding of the terms. Your job is to determine by searching and reading further information of which term you can answer the question. Indicate your choice as 'a', 'b', 'c', or 'd'. If you think more than one option is plausible, choose the more probable option to help you answer the question.

Let me give you an example: Question: When did the operation during which the 704th dropped supplies to allied troops near Nijmegen begin? Passage: The group was occasionally diverted from strategic missions to carry out air support and interdiction missions. It supported Operation Overlord, the invasion of Normandy by attacking transportation targets, including bridges, along with airfields and strong points in France. On D Day, the squadron and the rest of the 446th Group led the first heavy bomber mission of the day. The 446th aided ground forces at Caen and Saint-Lôduring July by hitting bridges, gun batteries, and enemy troops. During Operation Market Garden, the attempt to seize a bridgehead across the Rhine in the Netherlands, the 704th dropped supplies to allied troops near Nijmegen. It struck lines of communications during the Battle of the Bulge. During Operation Varsity in March 1945, it supplied ground and airborne troops near Wesel. The squadron flew its last combat mission on 25 April 1945 against Salzburg, Austria. The group had flown 273 missions and had lost 58 aircraft during the war,
. Links: a. Allies of World War II b. Wesel c. Operation Market Garden d. Air Support.
The answer to this example can be: c
Here is why: The passage describes the 704th's actions during Operation Market Garden.

OK. solve this:
Question: When was the company that Perry worked for after being employed at "Phoenix Foundry" founded? Passage:Samuel Perry (c.1864 – 19 March 1930) was the son of John and Harriett Perry (ca.1834 – 24 September 1918) of Shropshire, England, and the brother of Rev. Isaiah Perry (1854–1911). He was apprenticed as an iron worker to the Coalbrookdale Company, where he trained as an engineer. At the age of 22, around 1886, he followed his brother to Gawler, South Australia, where he found employment at James Martin's "Phoenix Foundry", living with the Roediger family at nearby Buchfelde (later named Loos). He next worked at Port Adelaide, then as foreman for John Danks & Son of Melbourne. He returned to Adelaide and started his own business with the purchase of James Wedlock's "Cornwall Foundry", the transfer of that factory to new premises Perry Engineering at Mile End, and the purchase of the James Martin & Co. workshops in Gawler. He took on his nephew Frank Perry, who became managing director and company chairman on his death.
 Links: a. Frank Perry (politician) b. Shropshire c. John Danks & Son d. James Martin (South Australian politician)
Answer:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
c