Which of the following compounds responds to both iodoform test and Fehling's test?

$Ph-CH(OH)-CH_3$ $\xrightarrow{PCC} (A)$ $\xrightarrow{NH_2-NH-C(=O)-NH_2} (B)$. Product $(B)$ is:

Reduction of aldehydes and ketones to hydrocarbons takes place in the presence of:

Assertion : Hydroxyketones are not directly used in Grignard reaction.
Reason : Grignard reagents react with hydroxyl group.

The reaction of $1-(\text{aminomethyl})cyclohexan-1-ol$ with $NaNO_2/HCl$ gives $A$. Identify $A$.

Statement $I$: Aldehyde on reaction with $HCN$ gives Cyanohydrin.
Statement $II$: Cyanohydrin is a compound which consists of hydroxy and cyano groups on the same carbon.
Choose the correct answer from the following with reference to above statements.