Final answer:
The rotational hazard zone of a wind turbine would exceed the length of one blade, so for a turbine with 30-meter blades, this zone would be more than 200 feet.
Step-by-step explanation:
The rotational hazard zone of a wind farm turbine is generally related to the length of its blades. Considering the size of large wind turbines with blade lengths reaching up to 30 meters or more, and rotor diameters as large as 150 meters, the hazard zone would naturally be more than the length of one blade. Given this information, for a wind turbine with blades 30 meters in length, the rotational hazard zone would be greater than 100 feet. Therefore, the correct answer to the question is option (b) 200 feet, as this is the minimum distance you would expect to keep clear of a turbine with such long blades.