A
A hydroelectric station with minimal water storage that generates electricity using continuous river flow.
B
A massive reservoir-based dam that completely submerges upstream forests for year-round flood control.
C
A pumped-storage facility that relies exclusively on groundwater extraction.
D
An offshore tidal energy plant driven strictly by oceanic salinity gradients.
Correct answer: (a) A hydroelectric station with minimal water storage that generates electricity using continuous river flow.
Explanation
Option A is correct because a run-of-the-river hydroelectric station has minimal water storage and generates electricity using the continuous natural flow of the river. Options A, C, and D describe entirely different energy systems.
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