Arrange the following alkyl halides in order of decreasing boiling point: CH₃CH₂Br, CH₃CH₂CH₂Br, (CH₃)₂CHBr, CH₃CH₂F.
a) CH₃CH₂F, CH₃CH₂Br, (CH₃)₂CHBr, CH₃CH₂CH₂Br
b) (CH₃)₂CHBr, CH₃CH₂CH₂Br, CH₃CH₂Br, CH₃CH₂F
c) CH₃CH₂F, CH₃CH₂CH₂Br, CH₃CH₂Br, (CH₃)₂CHBr
d) CH₃CH₂CH₂Br, CH₃CH₂F, (CH₃)₂CHBr, CH₃CH₂Br