CAIE IGCSE Chemistry 11.2.2 Type of compound present, given a

A homologous series is a family of organic compounds whose members have similar chemical properties.

A, B and C are organic compounds.

A has the molecular formula $\mathrm{C}_{12} \mathrm{H}_{24}$.
B has the name tetradecane.
C has three carbon atoms and is in the homologous series with the general formula $\mathrm{C}_{n} \mathrm{H}_{2 n+1} \mathrm{COOH}$.

Name the homologous series each organic compound belongs to.

A
B

C