Which Lewis symbol correctly represents the oxide ion?
a) O surrounded by three pairs of dots (6 electrons) with a 2− superscript
b) O surrounded by four pairs of dots (8 electrons) with a 1− superscript
c) O surrounded by four pairs of dots (8 electrons) with a 2− superscript
d) O surrounded by three pairs of dots and one single dot (7 electrons) with a 1− superscript