- "How do you do?" -“ _____________” A. I’m fine. Thank you. B. Happy to see you here.19/40Mark the letter A, B, Cor D to indicate the option that best completes each of the following exchanges. - "How do you do?" -“ _____________” I’m fine. Thank you.Happy to see you here.Happy to see you here.How do you do?Giải thíchChọn đáp án D