MTH Bank has given the McKelvey's a written pledge to lend $250,000 on a new construction home, for 30 years, at 6.53%. The McKelvey's will now present this pledge to the subdivision's sales agent to continue with their new home's construction. Which loan definition applies?

A. Conditional Approval
B. Underwriting
C. Exculpatory Clause
D. Non-Recourse Clause