Detailed Instructions: 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".
Q: [header] How to maximize sperm count [title] Don't smoke, and if you do, quit. [step] Smoking is associated with a lower sperm count and lower quality for the sperm that you do have. It can cause them to have the wrong shape and be less mobile, making it harder for them to fertilize the egg. <sep> (A) If you smoke, talk to your family and close friends in order to lower sperm production. [substeps] Some studies show that cigarette smoke boosts sperm production. (B) Smoking also has been linked to decreased sperm count and clinical odds of sperm getting fertilized. [substeps] Don't smoke as much as you should. (C) If you quit, your sperm count may improve. If you need help quitting, you can get support by : [substeps] Talking to your doctor, attending a treatment program, or seeing a specialist. (D) For this reason, it is highly recommended that you avoid smoking because it is more indicative of a higher sperm percentage. [substeps] Certain lifestyle changes such as quitting smoking are also a popular suggestion for reducing your chances of having a bleeding disorder.
A:
C