In this task, you will be shown a conversation and a question. You need to write an implausible answer to the question. Even though there exist multiple wrong answers, we only need a single wrong answer. "W" and "M" in the conversations stand for "woman" and "man".
Q: M: I want to make sure my son receives this letter. It has an important certificate in it. W: You can send it either by certified mail or registered mail. If you only want to make sure it is received, send it by certified mail. It's less expensive. M: OK. How about this package? W: What's in it? M: A watch. W: You should insure it for the value of the watch, and send it by registered mail. It's more expensive, but it's the safest way., Question: What is in the letter?
A:

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
A valuable book.