Arrange the Following in Order of Increasing Vapour Pressure at Room

Multiple Choice

Arrange the following in order of increasing vapour pressure at room temperature.
1) CH₃OCH₃,
2) CH₃CH₂OCH₂CH₃,
3) CH₃C(O) CH₃,
4) CH₃CH₂OH

A) 2 < 3 < 1 < 4
B) 1 < 4 < 3 < 2
C) 4 < 3 < 2 < 1
D) 3 < 4 < 1 < 2
E) 4 < 1 < 2 < 3