Answer:
C.Three-fifths times a number is 15.
Explanation:
Let's analyze each part and how you say it.
is a fraction that says you have one thing that it's parted on five equal pieces and you have three of them. If you want to short the three pieces of five, you'll say Three-fifths
In words, having a multiplication is named time. In this case, you have this fraction times m.
All together, the C answer is the correct one.