Carol received 10 NQOs (each option gives her the right to purchase 10 shares of stock for $8 per share) at the time she started working when the stock price was $6 per share. When the share price was $15 per share, she exercised all of her options. Eighteen months later she sold all of the shares for $20 per share. What is the amount of Carol's bargain element?

		$1,500.
		$700.
		$900.
		$0.
		None of these.