which power tool works well for driving (or loosening) a large number of fasteners?\no hammer drill\no…

Brief Explanations:

Impact drivers are designed to efficiently drive or loosen fasteners. They deliver high - torque output in short bursts, making them ideal for handling a large number of fasteners. Hammer drills are mainly for drilling in hard materials, oscillating multi - tools have multiple functions but not specialized for fasteners, and rotary hammers are for heavy - duty drilling and chiseling.

Answer:

C. impact driver