Fraction form of $0.012$ is:

The correct option is D $\frac{12}{1000}$

Decimal point in $0.012$ is after $3$ digits from the left

So, the fraction form will have denominator as third power of $10$ i.e ${10}^3=1000$

Thus, the fraction form of $0.012$ is $\frac{12}{1000}$.