As a general rule, when making a right turn it is best to...?

Answer: C — use more space on the road you are entering

When making a right turn, it is important to use more space on the road you are entering in order to properly execute the turn and ensure the safety of others. Using the sidewalk as an option (option A) is not legal and can put pedestrians in danger. Honking to alert pedestrians (option B) is not necessary as proper use of turn signals and yielding to pedestrian right-of-way should be sufficient. Speeding up to make the turn quickly (option D) can increase the risk of accidents and is not recommended. Therefore, utilizing more space on the road you are entering (option C) is the best and safest choice when making a right turn.