Consider the graph below:

Determine the points at which the slope of the curve is negative.

$\text{A}$, $\text{B}$ and $\text{D}$

$\text{B}$ and $\text{C}$

$\text{A}$ and $\text{D}$

$\text{B}$, $\text{C}$ and $\text{D}$