Detailed Instructions: In this task, you're given an article and an answer. Your task is to generate the question for the answer based on the given article.
Q: Article: Are you thinking of writhing someone a letter? Call instead. It isn't that expensive, especially when you call during the evening, night, or weekend hours. In fact, you can made a ten-minute call anywhere in the continental United States for just $2.60. For even greater saving, always dial direct ,that is ,without an operator's help .Rates on direct, that is ,without an operator's help. Rates on direct calls are lower after five o' clock in the evening and lowest after, and pay phone calls than direct calls. Need to call out of the country? Now calls to many overseas places may be dialed direct. Check your telephone direction for overseas area codes. Next time you have good news, or you just want to stay in touch, remember, a phone call means so much more than a letter. This has been a message from Southern Bell Telephone Company.
Answer: After 11 at night
A:
According go this passage, when is a dial telephone call cheapest?