Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges.

Jolie and Tom are meeting at the supermarket.
Jolie: "Hi, Tom. How are you doing?"
Tom: " _______ . How about you?"  

• A. I'm waiting for my sister
• B. I'm shopping for food
• C. I'm doing nothing
• D. I'm doing well