Technician A says that tread patterns vary from tire to tire. Technician B says radial ply tires are the most common tires used on passenger cars. Which technician is correct?

Technician A says that radial ply are the most commonly used tires. Technician B says that worn tires will improve braking and steering. Which technician is correct?

Technician A says tires are available in a variety of tread patterns. Technician B says tread wear indicators are used to improve tire wear. Which technician is correct?

Technician A says to check manufacturer's service procedures before rotating tires. Technician B says you can always rotate tires clockwise around the vehicle at the first sign of wear. Which technician is correct?

Technician A says radial force differences result from material variations in the tire and rim. Technician B says radial force variation may be corrected by aligning the tire on the rim as instructed by the appropriate balancing machine. Which technician is correct?

Technician A says that poorly balanced wheels and tires can effect fuel economy. Technician B says that tires can become out of balance as the tires wear. Which technician is correct?