Final answer:
The correct action for the motorist is to wait for the pedestrians to cross.
Step-by-step explanation:
If the motorist sees pedestrians in a crosswalk, the correct action for the motorist is to wait for them to cross. Pedestrians have the right of way when they are in a designated crosswalk, so it is important for motorists to be patient and allow them to cross safely. Pulling to the right and going behind them may be necessary if there is a line of pedestrians crossing.