Answer
a) functionalized hydrocarbon - alcohol
b) hydrocarbon
c) functionalized hydrocarbon - ether
d) functionalized hydrocarbon - amine
Work Step by Step
a) the compound is a functionalized hydrocarbon since it contains oxygen in addition to carbon and hydrogen. It has an $-OH$ group, so it is an alcohol
b) the compound is a hydrocarbon
c) the compound is a functionalized hydrocarbon since it contains oxygen in addition to carbon and hydrogen. It has a general formula of $R-O-R'$ , so it is an ether
d) the compound is a functionalized hydrocarbon since it contains nitrogen in addition to carbon and hydrogen, it is an amine