Answer:
I am proud of you, because you have done so well.
OR
Because you have done so well, I am proud of you.
Explanation:
MLA 8 was designed to simplify the process, helping writers accurately and intuitively cite sources more easily, requiring that every source type follow the same format. This means that books, websites, periodicals, videos, photographs, and all other types of sources now use this same standard format.
Your answer would be A.
Hope helps!
In my view purpose and point of view are very important when writing a biography.