Answer:
D
Step-by-step explanation:
The answer that fits best is D. Why? Well, the document only talks about why you should add your number to the Don't Call List and also how you can do it. Let's eliminate the other options, A? No, This doc. talks about how you can avoid these calls. B? It' talked in the doc. but it's not the main point, it's more of a fact. C? Most definitely not, I don't know who would actually do that but that is not the main point in the Doc. and I doubt someone will actually do it