Assertion . `H_(2) O` is the only hybride of group -16 which is liquid ordinary tempratyre .
Reason . In ice , oxygen atom is surrounded by two covalent bonds and two hydrogen bonds .
A. If both assertion and reason are correct, and reason is the correct explanation of the assertion.
B. If both assertion and reason are correct , but reason is not the correct explanation of the assertion.
C. If assertion is correct, but reason is incorrect .
D. If both assertion and reason are incorrect.
