The boiling points of amines and their correspondings alcohols and acids vary in the order.
A. `RCH_(2)NH_(2) gt RCOOH gt RCH_(2)OH`
B. `RCH_(2)NH_(2) gt RCH_(2)OH gt RCOOH`
C. `RCH_(2)NH_(2) lt RCOOH lt RCH_(2)OH`
D. `RCH_(2)NH_(2) lt RCH_(2)OH lt RCOOH `