The images below show four different reactions. Use these images to answer the question that follows.

The first reaction, option A, is a polymer reacted with water to yield two monomers.  Option B has two monomers reacted with water to produce a polymer.  Option C shows a polymer yielding a water molecule and two monomers.  Option D shows two monomers yielding a polymer plus water.

Which of the reactions above shows the formation of a macromolecule?

Choose one answer

Type a concept, like “slope” or “photosynthesis”.

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