In case of a loss covered under a property insurance policy, which of the following will be required? 1. Notice of loss. 2. Protection of the undamaged property. 3. Proof of loss. 4. Appraisal.

a) 1 and 2.

b) 1, 2, and 3

c) 1, 3, and 4

d) 2, 3, and 4.