In the Standardised Approach of Estimating Credit Risk in Pillar

In the standardised approach of estimating credit risk in Pillar 1 of Basel III,banks:

A) estimate its own probability of default and effective maturity,while regulator-defined estimates for other credit risk components are used.
B) assign each balance sheet asset and each off-balance sheet item a risk weight that is derived from either an approved external ratings agency or a weight specified by the regulator.
C) provides its own estimates for all credit risk items.
D) provides its own estimates for all interest rate risk items.