Assertion (A): The boiling points of aldehydes and ketones are higher than hydrocarbons and ethers.
Reason (R): Hydrogen bonding in aldehydes and ketones contributes to higher boiling points.
A) Both A and R are true, and R is the correct explanation of A.
B) Both A and R are true, but R is not the correct explanation of A.
C) A is true, but R is false.
D) Both A and R are false.