There is a pull on acceleration and deceleration. Who could be the possible cause?

When experiencing a pull during acceleration and deceleration, it indicates that there may be issues related to the vehicle's suspension, steering components, or alignment settings. Both technicians could potentially have valid contributions to this problem.

If one technician's work relates to wheel alignment, tire pressure, or suspension components, they might find an issue that causes the vehicle to pull when speed changes. The other technician might focus on braking components or tire conditions, which can also lead to pulling sensations in the vehicle during different driving scenarios.

Hence, the combined expertise of both technicians is valuable in diagnosing the cause of the pulling during both acceleration and deceleration. Their differing focuses can cover all potential factors that contribute to the problem, indicating that the correct answer includes both technicians.