Using the passage as a guide, whose dog is probably a service dog?
A
Frank's dog, who turns on the lights when Frank enters the room.
B
Raul's dog, who fetches the newspaper for Raul while he is busy getting dressed.
C
Mei's dog, who licks Mei’s face when she cries.
D
Teddy's dog, who loves to play catch, go on walks, and watch movies with the family.