Use reasoning to lead to the answer of the following question:
What kind of activity ends with a cash register?
Options:
- toy store
- shopping spree
- supermarket
- shop
- bookstore
 Reasoning process:

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
One needs to go to a cash register after shopping. Shopping is an activity. Shopping ends with a cash register. Therefore, the final answer is shop.