Drivers exiting the expressway should be prepared to exit by appropriately as the specific exit nears

Exit ramp

Explanation:

One must be cautious while exiting the highway. The driver should wait until he is in the deceleration lane. The he/she should reduce their speed to match the exit ramp speed. If you miss the exit ramp go to the next ramp instead of turning around.  

One should not exit the freeway without signalling While exiting a freeway one should should start signalling 5 seconds before reaching the exit. The driver should also reduce the speed as exiting at high speed can cause under steering.

answer; (d) one tectonic plate plunges beneath another; (most common,convergent boundaries)