Final answer:
The correct answer is d) Tower, which is the case housing the main components of a desktop computer and permits the connection of peripheral devices.
Step-by-step explanation:
The desktop computer's tower is the case that houses the main components of the computer and where peripheral devices connect. The correct answer to the student's question is d) Tower. A tower is sometimes also referred to as the computer case, chassis, system unit, or cabinet. It holds essential components such as the motherboard, central processing unit (CPU), graphics processing unit (GPU), random access memory (RAM), hard drives, and power supply. Peripheral devices like a mouse, keyboard, and printer typically connect to the tower through various ports.