What is simple uniform hashing?

(a) Every element has equal probability of hashing into any of the slots

(b) A weighted probabilistic method is used to hash elements into the slots

(c) Elements has Random probability of hashing into array slots

(d) Elements are hashed based on priority

Query is from Hash Tables topic in section Hash Tables of Data Structures & Algorithms I

This question was addressed to me by my college professor while I was bunking the class.