How should you write the proportion 9:36 = 10:40 using words?

A9 is to 36 as 10 is to 40
B9 is to 10 as 36 is to 40
C9 is to 36 as 40 is to 10
D36 is to 9 as 10 is to 40

Verified Answer :

A, because you follow the numbers and just put "is to" and "as" in the middle. 

The answer would be A.
first is to last as first is to last