Portfolio a Consists of 150 Shares of Stock and 300

Multiple Choice

Portfolio A consists of 150 shares of stock and 300 calls on that stock.Portfolio B consists of 575 shares of stock.The call delta is 0.7.Which portfolio has a higher dollar exposure to a change in stock price?

A) Portfolio B.
B) Portfolio A.
C) The two portfolios have the same exposure.
D) A if the stock price increases and B if it decreases.
E) B if the stock price decreases and A if it increases.