Fiscal Deficit can be expressed as:

Fiscal deficit represents the total borrowing requirements of the government. It can be mathematically computed and defined in multiple standard ways:
1. $$\text{Fiscal Deficit}=\text{Total Expenditure}-(\text{Revenue Receipts}+\text{Non-debt Capital Receipts})$$

2. $$\text{Fiscal Deficit}=\text{Budget Deficit}+\text{Market Borrowings \& Liabilities}$$

3. $$\text{Fiscal Deficit}=\text{Primary Deficit}+\text{Interest Payments}$$

Since options A, B, and C all describe valid accounting identities or structural definitions of the fiscal deficit, "All of the above" is the correct response.