Concept:Noble gases exist as isolated single atoms, so only weak intermolecular forces act between them.
Explanation:Noble gases have completely filled outer electron shells.
Therefore, they do not need to share, donate, or accept electrons.
So covalent, dative, and hydrogen bonds are not formed.
When noble gases are cooled or compressed, their atoms are held together by weak London dispersion forces.
London dispersion forces are a type of van der Waals forces.
These forces are temporary and arise due to instantaneous dipoles.
Answer:A. van der Waals forces