The answers are both A) and B).
It is A) because you multiply 5 times 5 which equals 25, and 2 times 5 equals 10.
Itβs is B) because you multiply 5 times 2 which equals 10, and 2 times 2 which equals 4.
In conclusion both of these ratios β 25:10 & 10:4 β are proportional, or equal, to 5:2.
I hope this helps!! :)