Thomas said that he would meet Andy the following Monday and asked if 1 O’clock suited him.

The correct answer is: D. Thomas said to Andy, “Andy, I would meet you the following Monday. Will 1 O’clock suit you?”

Here is a brief explanation of each option:

• Option A: “I will meet you the next Monday. Will 1 O’clock suit you?” is correct in terms of grammar and meaning. However, it is a bit too direct and formal.
• Option B: “Andy, I am going to meet you the following Monday. Does 1 O’clock suit you?” is also correct in terms of grammar and meaning. However, it is a bit too casual.
• Option C: “Andy, I will have to meet you the following Monday. Is 1 O’clock suiting you?” is grammatically correct, but it is a bit too demanding. It implies that Andy has no choice but to meet Thomas at 1 o’clock.
• Option D: “Andy, I would meet you the following Monday. Will 1 O’clock suit you?” is the most polite and appropriate option. It shows that Thomas is making a request, but he is also open to other suggestions.