Answer :
Final answer:
Diamond-shaped signs signify 'Warning Signs' (Option C) that indicate potential road hazards ahead, prompting drivers to slow down.
Explanation:
The diamond-shaped signs that you should slow down when you see them are (Option C) Warning Signs. These signs are designed to alert drivers to potential hazards or changes in the conditions of the road ahead. Examples of warning signs include signs for changes in road direction, intersections, pedestrian crossings, and animal crossings. Unlike the octagonal stop signs or triangular yield signs, diamond-shaped signs indicate that drivers should proceed with caution. It is crucial to recognize these signs and slow down to prevent accidents and ensure the safety of everyone on the road.