The following compounds are nonelectrolytes that are soluble in water. Which statement below is true of the colligative properties of these compounds?
-Acetic acid: CH₃COOH
-Glycerol: C₃H₅(OH)₃
-Sucrose: C₁₂H₂₂O₁₁
-Urea: CH₄N₂O
a) They exhibit higher colligative properties compared to electrolytes.
b) They do not affect colligative properties.
c) They lower the freezing point but do not affect boiling point.
d) They increase both freezing and boiling points.