Final answer:
The correct answer is B. Jack stands. Floor jacks are used to lift heavy loads but not designed for extended support. Transmission jacks and bumper jacks have other specific uses.
Step-by-step explanation:
The correct answer to this question is B. Jack stands.
Floor jacks, also known as hydraulic jacks, are used to lift heavy loads, such as vehicles, off the ground. However, they are not designed to support the weight of a vehicle for an extended period of time. Jack stands, on the other hand, are specifically designed to provide support and stability when working under a vehicle.
Transmission jacks are used to remove and install transmissions, while bumper jacks are used to lift the front or rear bumpers of a vehicle. Therefore, neither of these options would be suitable for supporting a vehicle while working under it.
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