What is the 28/36 rule used by lenders to qualify potential borrowers for a loan? A. Total proposed fixed monthly expenses must be between 28% and 36% of the borrowers gross monthly income. B. Proposed PITI must be between 28% and 36% of the borrowers gross monthly income. C. Proposed PITI must be above 28% of gross monthly income and proposed fixed monthly expenses must be above 36% of gross monthly income. D. Proposed PITI must be below 28% of gross monthly income and total proposed fixed monthly expenses must be below 36% of gross monthly income.