Evaluate the integral ${\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}\sqrt[\phantom{2}]{-4-5s}ds$

Determine a change of variable from $s$ to $u.$ Choose the correct choice below.

A$.u=-4-5s$

B$.u=\sqrt[\phantom{2}]{5s}$

C$.u=5s$

D$.u=\sqrt[\phantom{2}]{-4-5s}$

Write the integral in terms of $u.$

${\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}\sqrt[\phantom{2}]{-4-5s}ds={\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}|du||$

Evaluate the integral.

${\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}\sqrt[\phantom{2}]{-4-5s}ds=$