Fill in the blank (_) in the following sentence from the following choices.
Sentence: Carrie became a flight attendant, but Maria became a veterinarian instead, because _ was afraid of dogs.

Choice 1: Carrie became a flight attendant, but Maria became a veterinarian instead, because Carrie was afraid of dogs.
Choice 2: Carrie became a flight attendant, but Maria became a veterinarian instead, because Maria was afraid of dogs.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
1
2.