Let $S=[-9,-1)$, $T=[-5,3]$, and $W=(-\infty,-6)$.
For each intersection or union, choose the correct notation for the resulting interval.

1. $T\cap W$
2. $S\cap T$
3. $S\cup W$
4. $S\cap W$

A. $(-\infty,-1)$
B. $[-5,-1)$
C. $[-9,-6)$
D. $\emptyset$