Why should an electrostatic discharge (ESD) wrist strap be used when replacing parts such as
memory DIMMs?

A.
ESD protection is built into the equipment, so an ESC wrist strap is not needed.

B.
A 48 V DC PSU will contribute to higher static electricity.

C.
It prevents the part from being damaged by static electricity.

D.
A current of more than 75 mlcan kill someone.