Final answer:
The jacking equipment should support more than the weight of the load for safety and stability. Specific industry standards are needed to select the correct option regarding the required capacity of the jacking equipment.
Step-by-step explanation:
You are using jacking equipment to raise a concrete slab that weighs 5 tons. The jacking equipment can support 10 tons. If we consider the safety factors used in engineering and physics, the jacking equipment should have a capacity greater than just the weight of the load. This is to ensure the safety and stability during the lifting process and to account for any additional forces or unforeseen circumstances. However, without specific industry standards or regulations referenced in the question, it's impossible to definitively choose one of the provided options as the correct safety factor. It is common practice to use a safety factor of at least 1.5 to 2 times the maximum load expected.