Help ASAP........due today ;(

The answer is A- 35/84
Proportional means that two things are equivalent to each other
Therefore, the ratio 10/24 has to be equal to another fraction
So when you put these fractions side by side 10/24 = 35/84 you multiply the #'s to see if this is correct
so 10 * 84 = 840 and 24 * 84 = 2016 then 35 * 24 = 840 and 84 * 24 = 2016
So the fractions now are 840/2016 = 840/2016
We can easily see that these fraction are proportional (equal)
Therefore the answer is once again 35/84