Give them a pamplet on birth control options and a list of medically accurate websites they can visit to learn more.
If A: Incorrect. Pamphlets are great, but they may not provide all of the information.
If C: Incorrect. It is great that a client wants more information, but acknowledging their request isnt enough.
If D: Incorrect. The client is asking for information to look at on their own time and doesnt expect you to give them all of the information.