Which of the following aldehydes gives a red precipitate with Fehling solution?

Which of the following statement$(s)$ is/are correct about the given compound?
$CH_3COCH_2COOC_2H_5$

The major product $(Z)$ of the following chemical reaction is

The products $(A)$ and $(B)$ respectively in the above reaction are:

The products $(A)$ and $(B)$ are formed by the following reaction sequence:
$1$. $\text{NH}_2\text{OH}$
$2$. $\text{H}^+, \Delta$
$3$. $\text{LiAlH}_4$
Identify the products $(A)$ and $(B)$.

The reagent used for the separation of acetaldehyde from acetophenone is