Sandra ate about 2,000 calories yesterday. She was not feeling well, so she laid around and watched TV all day and burned 1,200 calories. If Sandra did this all week, she would __________. A.lose weight because she is in a state of energy balanceB.maintain her weight because she is in a state of energy balanceC.lose weight because she is not in a state of energy balanceD.gain weight because she is not in a state of energy balance