Answer:
C. 12:15 or 12/15
Step-by-step explanation:
There are 12 boys in the class and 15 girls.
The question asks for boys to girls.
12 boys: 15 girls is the same as saying 12:15, 12/15, or 12 boys to 15 girls in Tina's class.
You have to pay attention to the order in which the question asks for because 15:12 is NOT the same thing as 12:15. (15:12 ≠ 12:15)