detailed solution

Correct option is D

The correct option is (D),
Given we have to find the number of zeros in $100$ million.

$100$ million is the same as $10$ crore in the Indian number system.

We will start from $10$, there is $1$ zero.
In $100$, there are $2$ zeros.

In $1,000,$ there are $3$ zeros.
In $10,000,$ there are $4$ zeros.
In $1,00,000,$ there are $5$ zeros.
In $10,00,000$ there are $6$ zeros.

In $1,00,00,000,$ there are $7$ zeros.

In $10,00,00,000$ there are $8$ zeros.

Therefore, there are $8$ zeros in $100$ million.