RMD007 wrote:
Please suggest how C is full-proof answer.
C only suggests that solar energy plants will be beneficial over coal plans in summer. But the question stem does not provide any information about the place. Also conclusion here is very general, not specific to any season.
Solar energy plants use a number of mirrors to focus sunlight and produce electricity for about ten cents per kilowatt hour. The problem with the wide spread acceptance of solar energy plants is that electricity can be generated from
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