Given the task definition and input, reply with output. 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 inject ovidrel [title] Get a prescription from a fertility specialist. [step] If you think you need a prescription for ovidrel, make sure you discuss this with a fertility specialist first. They may need to run some tests to confirm that this is a necessary next step for your path to conception. <sep> (A) They'll also offer you advice on how to apply ovidrel directly. [substeps] About 60% of women start using ovidrel a day after birth. (B) Expect reputable testing companies to run low-cost testing to prevent accidental overuse. Pay attention to any potential potential risks factors for having stds, including having irregular periods or vaginal bleeding. (C) When you give the product to your child, discuss any questions you have about possible side effects for your newborn. These questions may influence you whether or not ovidrel will treat cancerous cells on your baby. (D) [substeps] With the supervision of your fertility specialist and a proper prescription, you can begin your ovidrel treatments. [title] Get training from your doctor about how to perform the injection.
D