Answer:
Counting by 7s' main character is Willow Chance, a little girl who has lost two sets of parents in her short life - she never knew her blood parents and her adoptive ones die in a terrible accident.
Answer:
A. My mother, a doctor, hopes that I follow her career path.
Explanation:
The subject my mother preceding the appositive provides sufficient identification on its own, so you need to use commas around the appositive a doctor.
