A dolphin went 15 feet below sea level to catch a fish. A shark went twice as deep, then swam down an additional 10 feet to catch a larger fish. Which expression represents the shark’s position in relation to sea level? 2 A. 2 (-15) + (-10) B. 2(-15)+10 C. 2 (-15) - (-10) D. 2 (-15)- (-10)