Final answer:
The energy in wind is renewable because it is not permanently depleted by use and can be continuously replenished. Wind turbines collect a fraction of the wind's energy, providing a sustainable power source that is supported by natural processes. Thus, the option "A" is the correct answer.
Step-by-step explanation:
An advantage to using wind power plants to generate electricity is that the energy in wind is renewable. Wind energy is a form of renewable energy that is not diminished by use and can continually be replenished by natural processes at the same rate, or faster than it is consumed by humans. As wind turbines, such as those found in modern wind farms, capture just a tiny fraction of wind energy, the supply is virtually unlimited. Furthermore, because the original source of wind energy is the sun, as with hydropower and other sustainable sources, it can theoretically be renewed indefinitely. This makes wind energy highly sustainable when used at rates that do not exceed its replenishment by natural processes.