Choose the most appropriate option.
Each sentence has been divided into three parts, indicated by $A$, $B$ and $C$. Read each sentence to find out, if there is an error. If you find an error in any of the parts $(A, B$ or $C)$, indicate your response. If a sentence has no error, mark your answer as $D$.
$\underset{(A)}{\underline{\text{I wonder /}}}$
$\underset{(B)}{\underline{\text{how am I/}}}$
$\underset{(C)}{\underline{\text{to do it/}}}$
$\underset{(D)}{\underline{\text{No error/}}}$