If $2 \leq x \leq 11$ and $6 \geq y \geq -4$ , then what is the range of possible values of $x+y$ ?

Question

$(a) \; -2 < x+y < 17 \\ (b)\;-2 > x+y > 17 \\ (c)\;2 < x+y < -17 \\ (d)\;-2 \leq x+y < 17 $