Fill in the Blanks with a Pair of Numbers That $\frac { 8 } { 5 } \cdot \frac { 5 } { 2 } = 40$

Fill in the blanks with a pair of numbers that has the indicated product and the indicated sum. For example, $\frac { 8 } { 5 } \cdot \frac { 5 } { 2 } = 40$ and $\underline { 8 } + \underline { 5 } = 13$ . $- { } _ { - } = 18$ and $- ^ { + } - = 11$

A) 1, 9
B) 2, 9
C) 2, 7
D) 1, 7
E) 7, 9