In an S'R' Latch, when S and R = 0, We get both Q and Q' = 1. (Option C)
After that, if we access memory state, ie, set S and R = 1, we get indeterminate output. (Option D).
So, Option C is the immediate consequence of trying to access the forbidden state, and Option D would come later if we try to access memory state after accessing the forbidden state.
Hence, Option C.