Discrete Math Question: The set of positive integers is _________ . a) Infinite b) Finite c) Subset d) Empty Discrete Math Interview QuestionAnswer: a) Infinite Previous QuestionNext QuestionA function is said to be ______________, if and only if f(a) = f(b) implies that a = b for all a and b in the domain of f. a) One-to-many b) One-to-one c) Many-to-many d) Many-to-oneThe value of ⌊1/2.⌊5/2⌋ ⌋ is _______________. a) 1 b) 2 c) 3 d) 0.5