Consider the following statements.
1. In case of standard assets, provision for NPA must be 25% for all types of standard assets.
2. In case of sub-standard assets, provision for NPA must be 10% for all types of standard assets.
3. In case of doubtful assets, 100% provision is required for unsecured and secured advances.
4. In case of loss assets, 10% of unsecured and 100% of secured advance must be kept as provision for NPAs.
Which of the statement(s) given above is/are correct?

A. Only 3

B. 1, 2 and 4

C. Only 4

D. Both 1 and 3

Answer: Option B