A contigous segment of an array is given by specifying two subscripts, lower and upper. Which of the following expressions gives the subscript of the array element that is three quarters of the way from lower to upper?

A) lower + 3 * upper /4
B) lower /3 + upper
C) (upper — lower) * 3 /4
D) lower + (upper — lower) * 3 / 4

D) lower + (upper — lower) * 3 / 4