Help me in solving CMATHMCQ3 problem

My issue

it fails when A!=B only know then we will get no option how it is correct

Learning course: Basic Math using C
Problem Link: CodeChef: Practical coding for everyone

@reverseengine
The condition mentioned is not checking for whether A==C or not.
So the teat cases having A==C will fail.
Thus option C will be the correct option.