Malaika is skiing on a mountain. The graph below shows her elevation, in meters, above the base of the mountain as she skis along a trail. In total, how many seconds does she spend at an elevation between $4$ and $7$ meters?

$\textbf{(A)}\ 6 \qquad \textbf{(B)}\ 8 \qquad \textbf{(C)}\ 10 \qquad \textbf{(D)}\ 12 \qquad \textbf{(E)}\ 14$
We mark the time intervals in which Malaika's elevation is between $4$ and $7$ meters in red, as shown below:

The requested time intervals are:

from the $2$nd to the $4$th seconds
from the $6$th to the $10$th seconds
from the $12$th to the $14$th seconds
In total, Malaika spends $(4-2) + (10-6) + (14-12) = \boxed{\textbf{(B)}\ 8}$ seconds at such elevation.
~apex304, MRENTHUSIASM