USAREUR Practice Exam 2026 – Comprehensive All-in-One Guide for Exam Success!

Using a directional signal is a crucial aspect of safe driving, as it communicates a driver's intentions to other road users. When considering the prerequisite for using a directional signal, it’s essential to understand the context in which signaling is necessary.

Signaling before making a right turn is important because it alerts other vehicles and pedestrians of your intention to turn, thereby reducing the risk of accidents. Similarly, when exiting a parking space, a directional signal helps inform other drivers that you are about to merge into traffic, which can help prevent collisions. Additionally, signaling when changing lanes is critical for the same reasons; it indicates to surrounding vehicles that you are initiating a move that could affect their path.

Therefore, each situation stated - making a right turn, exiting parking, and changing lanes - requires the use of a directional signal to ensure clear communication while driving. Since all of these scenarios reflect essential moments when signaling is needed, the correct answer encompasses all of them as prerequisites for using a directional signal. This highlights the importance of being aware and signaling in various driving contexts to promote roadway safety for everyone involved.