Answer the following question given this paragraph: Carbohydrates, proteins, and nucleic acids are large molecules (macromolecules) built from smaller molecules (monomers) through dehydration reactions. In a dehydration reaction, water is removed as two monomers are joined together. Q: In a dehydration reaction, what is removed as two monomers are joined together? A:

Options:
a). carbon
b). air
c). nitrogen
d). water
The answer is:
d).