The option B is true as hydroelectricity considered a legitimate renewable and sustainable resource, because It can be used without having human machinery.
Hydroelectric power is a renewable energy source which uses the power of moving water to produce electricity. It converts kinetic energy from water into electrical energy.
Hydroelectricity uses the energy of running water, without reducing its quantity, to produce electricity. This is the reason it is known as a renewable and sustainable resource of energy.
Thus, Option B is true, as it can be used without having human machinery.
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