When compared with the boiling points of other neutral organic compounds of comparable molecular weight, which of the following is true of the boiling points of carboxylic acids?
a) They are slightly higher than the boiling points of the other compounds.
b) They are significantly higher than the boiling points of the other compounds.
c) They are significantly lower than the boiling points of the other compounds.
d) They are slightly lower than the boiling points of the other compounds.