Match the following additives to their respective functions for poly$\text{(vinyl chloride)}$ compounding.
| Additive |
Function |
| P. Dibutyltin maleate |
1. Lubricant |
| Q. Epoxydized soybean oil |
2. Extender |
| R. Chlorinated paraffin wax |
3. Heat stabilizer |
| S. Calcium stearate |
4. Plasticizer |
- $\text{P-3; Q-4; R-2; S-1}$
- $\text{P-2; Q-4; R-1; S-3}$
- $\text{P-3; Q-2; R-1; S-4}$
- $\mathrm{P}-4 ; \mathrm{Q}-2 ; \mathrm{R}-1 ; \mathrm{S}-3$
