Which of the following methods can reduce static electricity problems in hazardous locations?

Installing antistatic mats is an effective method for reducing static electricity problems in hazardous locations. These mats are designed to dissipate static charges when people walk on them or when equipment is placed on them. This helps to minimize the buildup of static electricity that can lead to sparks, which is particularly important in environments where flammable materials are present.

Using non-conductive tools, while it may have some benefits in terms of preventing electric shock, does not directly address the issue of static electricity buildup. Non-conductive materials do not conduct electricity and thus can serve a different purpose in ensuring safety but may not necessarily mitigate static electricity in the same way that antistatic mats do.

The correct answer, therefore, emphasizes the importance of antistatic mats as a specific solution, while acknowledging that not all methods listed are equally effective at addressing static electricity problems. The reasoning reflects the critical need for effective strategies in managing static hazards in sensitive environments.