Question

why are frayed electrical cords a risk to workers?
they cause equipment to operate more slowly
they expose users to live wires
they reduce the lifespan of tools and equipment
they prevent electricity flow

Explanation:

Frayed electrical cords have damaged insulation, which can expose the live (current - carrying) wires inside. Exposing workers to live wires can lead to electrical shocks, burns, or other electrical - related injuries. The other options are incorrect: frayed cords don't mainly cause equipment to operate more slowly, reducing the lifespan of tools is not the primary risk to workers, and frayed cords typically don't prevent electricity flow (in fact, exposed wires can cause short - circuits or other electrical hazards rather than preventing flow).

Answer:

B. They expose users to live wires