Question 20 of 25 Einstein's theory of general relativity was published in 1916. It became fully

accepted by scientists in the 1960s and is currently the best explanation of

gravity. Why did it take so long to become an accepted scientific theory?

A. The scientific community requires a certain amount of time before

a theory can be accepted.

B. No scientific laws could be found to validate the theory.

C. More evidence needed to be gathered to validate the ideas in the

theory.

D. Einstein's theory was difficult for many people to understand.

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