C-02-Q033mediumsingle_mcqWhich set is NOT empty?aset of three male students of a girls' schoolb{x∈N:5<x<6}\{x \in \mathbb{N} : 5 < x < 6\}{x∈N:5<x<6}c{x:x2=−1,x∈R}\{x : x^2 = -1, x \in \mathbb{R}\}{x:x2=−1,x∈R}d{x:x\{x : x{x:x is an even prime}\}}