Intermolecular forces ...
There are several, and just because there is one, doesn't mean that there can't be others. The strongest intermolecular forces are due to hydrogen bonding. Molecules which are polar exhibit Keesom forces (dipole-dipole attraction) and Debye forces (induced attraction). All molecules exhibit London dispersion forces. Often London forces are second in strength only to hydrogen bonding. It is a misconception that London forces are always the weakest forces.
1) CS2 -- Linear and nonpolar, only London
2) SBr2 -- Bent, polar -- Keesom, Debye and London
3) HOF -- Bent, polar -- hydrogen bonding, Keesom, Debye and London
4) SO3 -- Trigonal planar, nonpolar -- London only
5) COH2 -- Trigonal planar, polar -- Keesom, Debye and London
6) CF4 -- Tetrahedral, nonpolar -- London only
7) C3H8 -- "linear", nonpolar -- London only
8) NH2CO2H -- polar -- hydrogen bonding, Keesom, Debye and London
9) HOCH2CH2OH -- hydrogen bonding, Keesom, Debye and London
The answer is accurate. Don't be put off by the "thumbs down." It's the work of a troll.