Question

Multiplicative identity for integers is

• A. $1$
• B. $0$
• C. $-1$
• D. none of these

Answer 1

The correct option is A

$1$

Multiplicative identity:

$1$ is the multiplicative identity for integers .

For any integer $\mathrm{a},$ we have $\mathrm{a}\times 1=1\times \mathrm{a}=\mathrm{a}$

Hence option (a) is correct.