Among the following, a terminating decimal is   

Terminating decimal : The decimal numbers with finite decimal part are known as terminating decimals.

Option ( C ) : $\frac{18}{15}$

$\frac{18}{15}=1.2$    it is Terminating decimal

$\therefore$  option ( C ) is correct

Option ( A ) : $\frac{4}{3}$  

$\frac{4}{3}=\text{1}\text{.333333}\mathrm{....}$  it is a non terminating repeating decimal.

$\therefore$  $\frac{4}{3}$  it is not a terminating decimal.

$\therefore$  option ( A ) is incorrect

Option ( B ) : $\frac{9}{7}$  

 $\frac{9}{7}=\text{1}\text{.285714285714285714285714}\mathrm{....}$  it is a non terminating repeating decimal.

$\therefore$   $\frac{9}{7}$  it is not a terminating decimal.

Option ( D ) : $\frac{2011}{2010}$

$\frac{2011}{2010}=\text{1}\text{.000497512437810945273}\mathrm{......}$  it is non-terminating non-repeating decimal.

$\therefore$  $\frac{2011}{2010}$  it is not a terminating decimal.