All of the following statements are true EXCEPT: a. The steering box converts the rotary motion of the steering wheel to angular motion. b. Steering linkage connects the steering box to the steering arm. c. The steering system provides control over the vehicle's direction of travel. d. The steering knuckle pivots on bushings.

The correct answer is a. The steering box converts the rotary motion of the steering wheel to angular motion.<br /><br />Explanation:<br />a. The steering box does not convert the rotary motion of the steering wheel to angular motion. Instead, it converts the rotary motion of the steering wheel to linear motion, which is then used to move the steering linkage and turn the wheels.<br />b. The steering linkage connects the steering box to the steering arm, which is correct.<br />c. The steering system provides control over the vehicle's direction of travel, which is also correct.<br />d. The steering knuckle pivots on bushings, which is true.