What Is the Essential Idea Behind RAROC

What is the essential idea behind RAROC?

A) Evaluating the actual or contractually promised annual ROA on a loan.
B) Analyzing historic or past default risk experience.
C) Balancing expected interest and fee income less the cost of funds against the loan's expected risk.
D) Extracting expected default rates from the current term structure of interest rates.
E) Dividing net interest and fees by the amount lent.