Consider the following statements: A. The value of solar constant is \( 1.4 \mathrm{KW} / \mathr...

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Consider the following statements:
A. The value of solar constant is \( 1.4 \mathrm{KW} / \mathrm{m}^{2} \).
B. The elements which can be used to make solar cells is carbon.

C. Solar heating devices can be used during night.
Which of these statement(s) is/are correct?
a. (A) and (B)
b. Only (A)
c. (B) and (C)
d. Only (B)
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