Consider the Following Liquids with Similar Molar Masses

Consider the following liquids with similar molar masses.Predict which has the weakest intermolecular attraction based only on vapor pressure data.

A) acetic acid (vapor pressure @ 20 °C = 14 mm Hg)
B) butane (vapor pressure @ 20 °C = 1550 mm Hg)
C) ethyl chloride (vapor pressure @ 20 °C = 1050 mm Hg)
D) ethyl methyl ether (vapor pressure @ 20 °C = 1260 mm Hg)
E) isopropyl alcohol (vapor pressure @ 20 °C = 35 mm Hg)