How are synthetic plastics produced?

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A. All plastics are not synthetic, they are all produced naturally from a tree
B. Most plastics are produced by extracting fossil fuels and breaking them down to a usable form
C. All plastics are produced by extracting them from trees and sending that to a factory
D. Synthetic plastic production has double every decade

B. Most plastics are produced by extracting fossil fuels and breaking them down to a usable form