Both ¹⁸O and ¹⁶O Are Found in Nature

Both ¹⁸O and ¹⁶O are found in nature.However,¹⁶O is the most common.Therefore,

A) these are different elements.
B) oxygen atoms can have eight or 10 neutrons.
C) ¹⁸O has two additional electrons in its outer shell.
D) ¹⁸O is the form of oxygen that provides living cells with life.
E) only the common form of ¹⁶O can bond with hydrogen atoms to form H₂O.