Find the Differential Dy of the Function $$y = - x ^ { 2 } - 3 x - 2$$

Multiple Choice

Find the differential dy of the function $$y = - x ^ { 2 } - 3 x - 2$$

A) $( - 2 x - 3 ) d x$
B) $\left( - x ^ { 3 } - 3 x ^ { 2 } - 2 x \right) d x$
C) $\left( - 2 x ^ { 2 } - 3 x - 2 \right) d x$
D) $\left( - \frac { 1 } { 3 } x ^ { 3 } - \frac { 3 } { 2 } x ^ { 2 } - 2 x \right) d x$
E) $( - x - 3 ) d x$