Final answer:
The C-clamp is the correct answer as it has a C-shaped frame and features a threaded metal shaft with a swiveling shoe for securing objects.
Step-by-step explanation:
The clamp that has a c-shape and features a threaded metal shaft fitted with a shoe designed to swivel is a C-clamp. This type of clamp is commonly used in metalworking, woodworking, and in various types of construction or repair work. The C-clamp's design allows it to securely hold objects by tightening the threaded shaft, which in turn moves the swiveling shoe to apply pressure against the object being clamped. It is easy to identify because of its distinctive C-shaped frame, from which it gets its name.