Which does not react with Fehling solution?

Which of the following does not give Fehling solution test?

Identify the product $P$ from the following sequence of reactions?

Compound $(A)$ with molecular formula $C_6H_{12}O_3$ gives a positive iodoform test and a negative Tollens' test. Upon treatment with water and a drop of $H_2SO_4$,it gives a positive Tollens' test. Compound $(A)$ is:

What will be the final product of the following reaction?

Tollen's reagent and Fehling solutions are used to distinguish between