Which explanation is most likely the reason for the evolution of a larger brain in humans?
the size of the human brain increases the more it is used.
a larger brain allows humans to solve complex problems.
the size of the human brain has changed randomly over time due to mutations.
a large brain increases humans’ ability to fight and survive disease.

The most likely reason for the evolution of a larger brain in humans is that the size of the human brain increases the more it is used. The correct option is A. Evolution findings show that as the activities of man increase and as he advance in using his brain to develop new things that are needed for his convenience, the brain size also continues to increase.

All of them are man made

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