The teacher asked students to discuss the situation: 'Which is better, supermarkets or traditional markets?' Choose the most suitable response to fill in the blank in the following exchange

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

The teacher asked students to discuss the situation: "Which is better, supermarkets or traditional markets?" Choose the most suitable response to fill in the blank in the following exchange.
- Jennifer:   I believe that supermarkets are much better than traditional markets.
- Katherine: ______________ . Each has its own features.

• A. I couldn’t agree with you more.
• B. That’s completely true.
• C. I disagree with you. 
• D. I can’t help thinking the same.