B may be the answer.hope it helps you
<span>Across nearly seven million years, the human brain has tripled in size, with most of this growth occurring in the past two million years.</span>
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Intelligence can actually be affected by both environmental and genetic influences.
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The relationship between gender roles, identity and typing provide equal opportunity for an civilized environment to be established.
The societies impact on males and females draw a conclusion that suggests that we are in a forever state of movement. Society stance on gender role, identity and typing will forever be constantly changing.
