Which of the following polymers is biodegradable?

Match the following List-$I$ (Monomer/s) with List-$II$ (Name of the polymer) and select the correct answer:
| List-$I$ (Monomer/s) | List-$II$ (Name of the polymer) |
| :--- | :--- |
| $A$. $CF_2=CF_2$ | $I$. Neoprene |
| $B$. $NH_2(CH_2)_6NH_2, HO_2C(CH_2)_4CO_2H$ | $II$. Bakelite |
| $C$. $C_6H_5OH, HCHO$ | $III$. Teflon |
| $D$. $CH_2=CH(Cl)-CH=CH_2$ | $IV$. Nylon $6, 6$ |

Match List-$I$ with List-$II$:

List-$I$ Polymer	List-$II$ Type/Class
$A$. Nylon-$2$-Nylon-$6$	$I$. Thermosetting Polymer
$B$. Buna-$N$	$II$. Biodegradable polymer
$C$. Urea-formaldehyde	$III$. Synthetic rubber
$D$. Dacron	$IV$. Polyester

Choose the correct answer from the options given below:

$A$ biodegradable polyamide can be made from:

Identify the monomers used in the manufacture of glyptal $(X)$, dacron $(Y)$ and nylon $2$-nylon $6$ $(Z)$.

Neoprene,a synthetic rubber,contains which of the following elements besides $C$ and $H$?