Step 1: Understanding the Question:
• The question asks to identify the kinds of moulds used for making sculptures.
Step 2: Detailed Explanation:
• As per the NTA final answer key, the accepted set is A, C and D: Waste, Gelation (gelatine) and Vina.
• Flint (B) is not accepted as a mould type.
Step 3: Final Answer:
The correct option is (B) A, C and D Only.