What Are Off-Budget Supplemental Appropriations

What are off-budget supplemental appropriations?

A) Special one-time expenditures to cover emergencies.
B) Congressional pork projects that the president doesn't want to approve in the budget.
C) Items that are not accounted for in the national debt.
D) Items that the Office of Management and Budget will not approve but that the president wants in the budget.
E) Items that Congress won't approve but that the president wants in the budget.