Alkanes have low boiling points due to weak London dispersion forces. Order of boiling point is correctly represented in

As MW increases, vanderwaals forces become stronger, BP increases1)  CH4 < C2H6 ... TrueBoiling point mainly depends on MW, only when MW is same then branching increases boiling point decreases;(2)….MW of isopentane > n-butane;(3)….Branching in isopentane < neo pentane;(4)…MW of isobutane > propane