Final answer:
Technician A is correct about the term 'live axle', which refers to an axle that drives the vehicle. Technician B is incorrect; a 'dead axle' refers to an axle that does not transfer power and is not associated with the ability to steer.
Step-by-step explanation:
The correct answer is that Technician A is correct in saying that a live axle is an axle that drives the vehicle, providing power from the engine to the wheels, causing them to move. However, Technician B is incorrect; a dead axle does not pertain to the ability to steer. Instead, a dead axle refers to an axle that does not transfer power. It merely supports the weight of the vehicle and allows the wheels to rotate. Steering is typically associated with the front axle in many vehicles, which could be either a live or dead axle depending on the vehicle's drivetrain configuration.