In spite of the electronic configuration of carbon of 1s22s22p2 the atom is tetravalent because ____________

A. the electrons in both 2s and 2p orbital have equal energy
B. the orbital in both 2s and 2p are equivalent  
C. Both the 2s and 2p orbitals have equal energy
D. the six orbital hybridize to form four.

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Correct Answer: B