Refer to the cash flow diagram. What is the present worth, P, of the gradient cash flows? A. 200 + 100 ( P / G , i , 7 ) B. 200 + 100 ( P / G , i , 8 ) C. 200 ( P / A , i , 8 ) + 100 ( P / G , i , 7 ) D. 200 ( P / A , i , 8 ) + 100 ( P / G , i , 8 ) .