The correct option is D C2H6
∙ VSEPR theory explains bond angles in molecules with three or more than three atoms in which all atoms are attached to a single atom (central atom) through covalent bonds.
∙ But in C2H6 the hydrogen atoms are attached to two carbon atoms. There is no central atom in C2H6. Therefore, shape of C2H6 cannot be predicted by VSEPR theory.