-It cannot be the number "A" because "A" means "How it´s going", that doesn´t mean "How is she doing".
-It cannot be the number "C" because "C" means "As you are", that doesn´t mean "How she doing".
-But there is a problem, it can be "B" and "D" because "B" is an informal way to say "How are you" and is used a lot between conversations and meetings, and "D" is a formal way and a respectful way to talk to someone, to say "How are you" but is not so common between conservations.
Explanation: “¿cómo estás usted? Translates to how are you but “usted” is a proper way to be respectful to an older person and family member well that’s what I was told by my Hispanic parents
