Based on the Valence Shell Electron Pair Repulsion Theory (or VSEPR), molecules will arrange to keep the following as far apart as physically possible a) mobile electrons
b) valence electron pairs
c) inner shell electrons
d) the electrons closest to the nuclei

B. Valence Electron Pairs

Explanation:

Valence-shell electron-pair repulsion, or VSEPR, describes the shape of molecules by determining the repulsion of valence electrons. Therefore, our answer is B.

Option (b) is the correct answer.

Explanation:

When a hydrogen atom is bonded to an electronegative atom then bonding between the combining atoms is known as hydrogen bonding.

For example, in a water molecule due to difference in electronegativity of oxygen and hydrogen atoms there will be development of partial negative charge on oxygen atom and partial positive charge on hydrogen atom.

As a result, the water molecule will become polar in nature. And, due to opposite charges on both hydrogen and oxygen atoms there will be strong bonds between the water molecules.

Hence, we can conclude that strong bonds exist between water molecules because they are held together by hydrogen bonds.