the set of integers z with the binary operation "*" defined as a*b =a +b+ 1 fo

Question

the set of integers z with the binary operation "*" defined as a*b =a +b+ 1 for a, b ∈ z, is a group. the identity element of this group is

Options:

A . -1

B . 0

C . 1

D . 2

Answer: Option A
Explanation :

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