You will be given a definition of a task first, then some input of the task.
In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".

[header] How to talk to your daughter about her period [title] Plan ahead to have the talk early. [step] On average, girls begin menstruating between 12 and 13, but some may start much earlier or possibly later. Consider your daughter's age and tell her casually that you'd like to have a conversation about health and our bodies. <sep> (A) [substeps] Also consider how much time you plan to have. Tell her you feel it would be better to have some time for sex. (B) [title] Practice what you plan to say with a partner or friend. [step] Knowing what information you intend to share ahead of time is important to avoid uncomfortable moments for both of you. (C) Then, wait for your daughter to talk to you about it. [title] Arrive to your daughter's menstrual cycle. (D) [title] Be as clear about what you want to talk about. [step] Your daughter may not know because you don't meet her on a formal level, but she may be curious about the topic and be interested enough to ask you about it.
Output:
B