What characteristic of carbon's structure makes it so important in building macromolecules? A. It is soluble in water

B. It is insoluble in water

C. It forms 4 strong bonds

D. It forms 2 weak bonds

C. It forms 4 strong bonds.

Though Carbon doesn't make the strongest bonds, the fact that it can make 4 bonds gives it the flexibility to make very complex molecules while the other virgin elements can only make 1, 2 or 3 bonds. Also the abundance of carbon also helps a lot.

the answer is the first option

explanation:

just googled it m8. not that hard

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