Find the complete set of values of $k$ for which the line $y = x - 2$ crosses or touches the curve $y = x ^ { 2 } + k x + 2$
A $- 1 \leq k \leq 3$\\
B $- 3 \leq k \leq 5$\\
C $- 4 \leq k \leq 4$\\
D $k \leq - 1$ or $k \geq 3$\\
E $k \leq - 3$ or $k \geq 5$\\
F $k \leq - 4$ or $k \geq 4$