Technician A says that the aspect ratio of a tire represents the relationship between the tire's cross-sectional height to its cross-sectional width. Technician B says that low aspect ratios provide a softer ride because they will deflect more over irregular surfaces and under heavy loads. Who is correct?

Technician A is correct

Explanation:

Technician A is correct because the aspect ratio shows that cross-sectional height of the tire is part of the tire's cross-sectional width.

Technician is incorrect because low aspect ratio doesn't often lead to softer rides because bump and crack encountered while driving is drivers/riders in the vehicle.