Answer: Option (b) is the correct answer.
Step-by-step explanation:
A compound that contains "-OH" group as the functional group is known as an alcohol.
Whereas an enzyme is like a catalyst that helps in increasing the rate of a biochemical reaction.
Ester is an organic functional group that has general formula as -RCOOR' where both R and R' can be same or different alkyl or aryl group.
Aldehyde is also an organic functional group that has general formula -RCHO where R can be any alkyl or aryl group.
Thus, we can conclude that a chemical compound containing the R-OH functional group is an alcohol.