Class 12 Relations And Functions · Mcq Single Correct1 Markstypes_of_functions Class 12 Maths · Relations And Functions · Mcq Single Correct #136 How many one-one functions exist from \(\{1,2,3,4,5\}\) to \(\{a,b\}\)? (A) 5(B) 3(C) 2(D) 0