What component is primarily used to secure a vehicle to a technician's rack during repairs?

The correct choice for securing a vehicle to a technician's rack during repairs is anchors. Anchors serve the critical function of providing a stable and secure point of attachment that keeps the vehicle in place while work is being performed. This is essential for ensuring both the safety of the technician and the integrity of the vehicle during repairs. Anchoring systems are designed to withstand the forces exerted during repair work and can provide a reliable hold without damaging the vehicle.

Straps, clamps, and chains may also be used in various contexts for securing items or loads, but they are typically not the primary components used specifically in a professional repair shop setting for securing vehicles to a technician's rack. Straps can be useful for lighter or temporary securing needs, clamps may hold smaller parts or fixtures, and chains might not be designed to interface appropriately with a vehicle's frame. Hence, the focus on anchors as the preferred method reflects their specialized design for this task.