What is the correct order of increasing boiling point?

A.     \({{\text{C}}_{\text{2}}}{{\text{H}}_{\text{6}}} < {\text{HCHO}} < {\text{C}}{{\text{H}}_{\text{3}}}{\text{OH}}\)

B.     \({\text{HCHO}} < {{\text{C}}_{\text{2}}}{{\text{H}}_{\text{6}}} < {\text{C}}{{\text{H}}_{\text{3}}}{\text{OH}}\)

C.     \({\text{C}}{{\text{H}}_{\text{3}}}{\text{OH}} < {\text{HCHO}} < {{\text{C}}_{\text{2}}}{{\text{H}}_{\text{6}}}\)

D.     \({{\text{C}}_{\text{2}}}{{\text{H}}_{\text{6}}} < {\text{C}}{{\text{H}}_{\text{3}}}{\text{OH}} < {\text{HCHO}}\)

A