Answer:
but the only right answer is C
Explanation:
C 40 out of 100 is just like 2 out of 5
2 out of 5 times by 2 each number would go from 2 to 4 and 5 to ten and up from their from 4 to 40 and 10 to 100
so the answer would be 40 out of 100
what is making you think its not C?
Sorry I explained that really badly...