Diatomic Molecules Are Linear Because _____

Diatomic molecules are linear because _____.

A) they form odd-electron molecules around the central atom
B) electron-deficient molecules cannot be formed of only two electron groups
C) only polar covalent bonds are formed in such molecules
D) electron groups repel to get as far away from each other
E) bonds in such compounds have a polarity of less than 0.4