First option is .

Check is divisible by 2 for all positive integers .

For , .

For , .

For every positive integers , .

Thus, zero is divisible by every integer.

Second option is .

Check is divisible by 2 for all positive integers .

For , .

For , .

For , .

Observe the answers in the expressions.

For every positive integers , is divisible by 2.

Option H is correct.

For every positive integers , is divisible by 2.