Technician A and Technician B are both correct.
Here's a step-by-step explanation:
1. Technician A is correct because reading the customer complaint carefully prior to the road test is crucial. Understanding the specific shifting concern reported by the customer can help the technician focus on verifying that particular issue during the road test.
2. Technician B is also correct because checking the transmission fluid before the road test is an essential step. Proper transmission fluid level and condition are important factors that can affect the shifting performance of the vehicle. Low or contaminated transmission fluid can lead to shifting issues, so it's important to ensure the fluid is at the correct level and in good condition before conducting the road test.
Therefore, both Technician A and Technician B play important roles in ensuring a thorough and effective road test to verify a shifting concern in a late model vehicle.