Concept:Public debt arises when a government spends beyond its income and borrows to cover the gap.Explanation:A deficit budget occurs when planned government expenditure exceeds expected revenue.To finance this deficit, the government borrows money from domestic and external sources.Continuous deficit budgeting increases the total amount owed, leading to a huge public debt.In Nigeria, persistent budget deficits have contributed significantly to the national debt profile.Answer:B. deficit budgeting