Which is the correct increasing order of boiling points of the following compounds
1-bromoethane, 1-bromopropane, 1-bromobutane, Bromobenzene
1
Bromobenzene < 1-bromobutane < 1-bromopropane < 1-bromoethane
2
Bromobenzene < 1-bromoethane < 1-bromopropane < 1-bromobutane
3
1-bromopropane < 1-bromobutane < 1-bromoethane < Bromobenzene
4
1-bromoethane < 1-bromopropane < 1-bromobutane < Bromobenzene