The table shows the properties of some organic compounds.

Compound A: has only carbon and hydrogen atoms.
Compound B: has a nitrogen atom

which statement best identifies compounds A and B?

a) compound a is an ether and compound b is an alcohol
b) compound a is an alcohol and compound b is an ether
c) compound a is a hydrocarbon and compound b is an amine
d) compound a is an amine and compound b is a hydrocarbon