What are coarse-pitched screws typically used for? What is an anti-static wrist strap used for?

a) What are coarse-pitched screws typically used for?
The correct option is C.
Coarse-pitched screws are commonly used for mounting hard drives and case panels because their wider threads provide a secure grip in softer materials like plastic or thin metal, and they are less prone to stripping.

b) Anti-static wrist strap is used to:
The correct option is C.
An anti-static wrist strap is a safety device used to prevent static discharge. It grounds a person working on electronic equipment, safely dissipating any static electricity from their body to prevent damage to sensitive components.