Let the function, $f : [-7, 0] \rightarrow R$ be continuous on $[-7, 0]$ and differentiable on $(-7, 0)$. If $f(-7) = -3$ and $f ^ { \prime } (x) \leq 2$ for all $x \in (-7, 0)$, then for all such functions $f$, $f(-1) + f(0)$ lies in the interval\\
(1) $(-\infty, 20]$\\
(2) $[-3, 11]$\\
(3) $(-\infty, 11]$\\
(4) $[-6, 20]$