You purchased 100 shares of common stock on margin at $45 per share. Assume the initial margin is 50%, and the stock pays no dividend. What would the maintenance margin be if a margin call is made at a stock price of $30? Ignore interest on margin.

		A) 0.33
		B) 0.55
		C) 0.43
		D) 0.23
		E) 0.25