Answer:
a) Individual pieces to a puzzle.
c) Bricks that makeup a house.
Explanation:
As stated, monomers are considered as a building blocks. They are arranged in a specific way to make a full structure. From the given options, both A and C are correct.
In the option A, individual pieces of puzzles acts as monomers to make the complete puzzle. The are arranged in a specific way to establish the complete structure.
In the option C, a home is made with bricks following some pattern. Therefore, each brick can be considered as a monomer and a home as a macromolecule.