Ladder Feet Long Is Leaning Against the Wall of a House

ladder feet long is leaning against the wall of a house (see figure) . The base of the ladder is pulled away from the wall at a rate of feet per second. Find the rate at which the angle Between the ladder and the wall of the house is changing when the base of the ladder is feet from The wall. Round your answer to three decimal places.

A) $0.242 \mathrm { rad } / \mathrm { sec }$
B) $0.190 \mathrm { rad } / \mathrm { sec }$
C) $2.168 \mathrm { rad } / \mathrm { sec }$
D) $3.804 \mathrm { rad } / \mathrm { sec }$
E) $0.278 \mathrm { rad } / \mathrm { sec }$