If the value of 'a' is 3 & if the value of 'b' is 5
a = 3 ------- b=5
Does this make it more "easier " for you to understand ?
it kind of, sort of gave you the answer (keep in mind )
its not▶ a = 5 & B = 3 (that's how we know this isn't your answer) (option C.) ; its not saying a = 2 & B= 5 (now we know that not your answer as well). (option A.)
So, from the looks of it your answer would have to be 3/5 (option B.)
Note: Just pay close attention to what the question is asking you