"I am not satisfied with this answer."
Translation:Tôi không thoả mãn với đáp án này.
Is "đáp án" an answer to any kind of answer (i.e., a verbal reply as well as the answer to a math problem)? Or only the "answers" of certain situations?
"Trả lời" is the common way to say "answer" in everyday conversations.
"Đáp án" is on formal tests and applications, but Duo seems to teach "đáp án" exclusively.