Match the Additive to its Function. 
Step 1: Match the additives to their functions.
P. Tritolyl phosphate: It is a plasticizer, which is used to increase the flexibility of materials.
Q. Triethoxy vinyl silane: It acts as a coupling agent, which is used to improve the bonding between different materials.
R. Azobisbutyronitrile: It is a blowing agent, which is used to create foams in polymers.
S. 4-Methyl-2,6-di-t-butyl phenol: It is an antioxidant, used to prevent the degradation of polymers due to oxidation.
Step 2: Conclusion.
Thus, the correct matching is: P-3, Q-1, R-4, S-2. The answer is (B).
Final Answer: (B) P-3, Q-1, R-4, S-2
The value of the determinant 
is: