Answer:
a. class c
Explanation:
The hard hats are certified by the American National Standards Institute (ANSI). The hard hats have to meet the ANSI Z89.1 specifications. The standard specifies the hard hat types and classes, performance requirements and design for various conditions and testing. There are three hard hat classes for electric shock protection
Class G 2200 Volts protection
Class E 20,000 Volts protection.
Class C which do not offer protection from electric shock