A ladder leaning against a wall makes an angle θ with the horizontal ground such that \(\cos \theta = \dfrac{5}{13}\). If the height of the top of the ladder from the foot of the wall is 18 m, then what is the distance (in m) of the foot of the ladder from the wall?

• A. 19.5
• B. 7.5
• C. 13
• D. 18