A) \[(-,\,\,+,\,\,-,\,\,-,\,\,-)\]
B) \[(-,\,\,+,\,\,+,\,\,+,\,\,+)\]
C) \[(+,\,\,+,\,\,-,\,\,-,\,\,+)\]
D) Both (b) and (c) are correct
E) None of these
Correct Answer: D
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