Step 1: Understanding synthetic leather.
Synthetic leather is often made from polymers such as PVC (polyvinyl chloride). PVC is commonly used for making synthetic leather due to its durability and flexibility.
Step 2: Analyzing the options.
(A) Bakelite: Bakelite is a thermosetting plastic and is not used as synthetic leather.
(B) PVC: Correct — PVC is widely used in synthetic leather.
(C) Polystyrene: Polystyrene is a rigid plastic, not used for synthetic leather.
(D) Polythene: Polythene is a low-density polymer, and it is not typically used for synthetic leather.
Step 3: Conclusion.
The correct answer is (B) PVC, as it is commonly used in synthetic leather.