Find the shortest distance between the two circles with equations: $$\begin{aligned} & ( x + 2 ) ^ { 2 } + ( y - 3 ) ^ { 2 } = 18 \\ & ( x - 7 ) ^ { 2 } + ( y + 6 ) ^ { 2 } = 2 \end{aligned}$$ A 0 B 4 C 16 D $2 \sqrt { 2 }$ E $5 \sqrt { 2 }$