Step 1: Understanding copolymers.
- Copolymers are made by combining two or more different types of monomers, allowing the resulting material to have a mix of enhanced properties.
Step 2: Explanation of incorrect options.
- (A) Monomers: These are the basic building blocks of polymers and do not represent combinations of different plastics.
- (B) Plasticizers: They are additives used to increase the flexibility of polymers, but they do not combine plastics.
- (C) Homopolymer: A polymer made from a single type of monomer, not a combination of different ones.
Step 3: Selecting the correct option.
Since copolymers combine different types of monomers for better properties, the correct answer is (D) Copolymer.