These geometry problems all require different to solve them. complete the sentence with the plural form of the word proof. a. prooves b. proofs c. proves d. proofes

B) proofs.

Explanation: The word proof means "information that proves something," it is a noun, and its plural form is constructed just by adding the letter "s" at the end of the word. So from the given options, the one that represents the plural form of the word "proof" is the corresponding to option B. The complete sentence would be "These geometry problems all require different proofs to solve them."

the answer is:

b) to show the progression of inventions that took place in the bicycling industry.

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