Which feature allows you to adjust the steering wheel's vertical position?

Answer: D — The tilt wheel steering device

The ability to adjust the steering wheel’s vertical position is provided by the tilt wheel steering device. This mechanism lets you tilt the wheel up or down to find a comfortable angle for your arms and view of the dashboard. It’s specifically about changing the wheel’s angle vertically, unlike a telescoping adjustment that moves the column in and out to adjust reach. The cruise control stalk controls speed, not steering angle; the steering wheel lock is a security feature; and an adjustable steering column can include multiple adjustments, but the tilt function is the one that directly changes vertical position.