1. For which of the following are you not required to signal beforehand?

A. Changing lanes

B. Speeding up

C. Stopping

C stopping.

Explanation:

The situation varies, if there is a cross-walk and there is a pedestrian trying to cross you it is mandatory to stop. and allow the pedestrian the right of way. so if you're driving and suddenly stop to allow the pedestrian their right of way then all oncoming vehicles must stop to allow the pedestrian to cross the street.