To determine the correct term for the described transaction:
1. The transaction described matches the definition of bailment under the Indian Contract Act, 1872, where goods are delivered for a specific purpose with the condition of return or disposal as directed by the bailor.
2. However, the option lists "Bailmet" (likely a typo for "Bailment"). Assuming "Bailmet" is intended to mean "Bailment," it is the correct term.
3. Custody is mere possession, pawn is a type of bailment for security, and mortgage involves property transfer, none of which fully apply.
4. Given the context, "Bailmet" is accepted as the intended correct answer based on the exam's options.
Therefore, the correct answer is (4) Bailmet.