Consider the following statements

1. The prime implicant which has at least one element that is not present in any other implicant is known as Essential Prime Implicant

2. Enable input of a Multiplexer to have the function of activating the entire chip.

3. 4 select lines will be required for an 8-line-to-1-line multiplexer

Which of the above statement(s) is/are correct?