Which of the following is a benefit of proper grounding?

Proper grounding significantly enhances safety from electrical faults, which is a primary benefit of a well-implemented grounding system. Grounding provides a low-resistance path for fault currents to safely dissipate into the earth, reducing the risk of electric shock to individuals and minimizing potential fire hazards. This protective measure is crucial in preventing equipment damage and maintaining operational integrity in electrical installations.

The other options highlight negative aspects that are not associated with proper grounding. Increased energy costs, reduced equipment lifespan, and a complicated installation process do not accurately reflect the intention or outcome of a well-executed grounding strategy. Instead, effective grounding generally leads to improved system reliability and efficiency, further emphasizing its critical role in electrical safety.