[单选题]
The structural formulas of two compounds in a homologous series are shown.
Why does the boiling point of compound Y differ from that of compound X?
A. $Y$ has a higher boiling point because there are more atoms interacting via dispersion forces
B. $Y$ has a lower boiling point because there are more atoms interacting via dispersion forces
C. $Y$ has a higher boiling point because there are more atoms interacting via hydrogen bonds
D. $Y$ has a lower boiling point because there are more atoms interacting via hydrogen bonds
