End-of-year Balance sheet:
- Cash = $20,000
- Receivables = $50,000
- Inventories = $150,000
- Net long-term debt = $80,000
- Net fixed assets = $90,000
- Common Equity = $220,000
- Total assets = $310,000

What is the total amount of assets on the end-of-year balance sheet?

Options:
A) $20,000
B) $50,000
C) $150,000
D) $310,000