44. Which of these dogs is most likely to be a sniffer dog?
(A) Peter. His father is a sniffer dog. He works with firefighters.
(B) Cindy, a ten-year-old dog. She passed the towel game exam.
(C) Teddy. It can find the smell of different things and has been trained for one year.
(D) John. He's a Labrador that helps blind people in their daily life.