Match the following structures with their names and select the correct option.

In metabolic processes,the energy obtained by the cell is immediately stored in which form?

Which of the following does not belong to the vitamin $B$ group?

Glucose is converted into glycogen in the liver and stored in:

The figure shows a hypothetical tetrapeptide portion of a protein with parts labelled $a$ to $d$. Which one of the following options is correct?

Assertion $(S)$: The measure of disorder in a biological system is called free energy.
Reason $(R)$: The energy available in a biological system to perform work is called entropy.
$(A)$ Both $S$ and $R$ are true,and $R$ is the correct explanation of $S$.
$(B)$ Both $S$ and $R$ are true,but $R$ is not the correct explanation of $S$.
$(C)$ $S$ is true and $R$ is false.
$(D)$ $S$ is false and $R$ is true.
$(E)$ Both $S$ and $R$ are false.