Consider the following statements: A. The efficiency of solar heating devices is much lower than...

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Consider the following statements:
A. The efficiency of solar heating devices is much lower than the efficiency of electric heating devices.
B. The excessive use of solar energy will pollute the air.
Which of these statement(s) is/are correct?
a. A only
b. B only
c. Only (A) and (B)
d. Neither (A) nor (B)
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