Read the following conversation and answer the question.

W: Hello, this is Dr. Gray's office. We're calling to remind you of your 4:15 appointment for your annual checkup tomorrow.

M: Oh, thanks. It's a good thing you called. I thought it was 4:15 today.

Question: What do we learn from the conversation? 

- The man was confused about the date of the appointment.

- The man wants to change the date of the appointment.

- The man is glad he's got in touch with the doctor.


The man was confused about the date of the appointment.