I accidentally answered this, if I post this then i could get accused for plagiarism sorry
It depends what the college is and where it is you should call the college and ask
Answer: Human Services, an associate's degree
Explanation: Taking care of people is human services and a preschool teacher takes care of little people. I googled what you need to become a preschool teacher and an associate's degree is what I saw.
Answer is letter c good luck