B. he was sign as the leader for it
The fact that the government is divided into three branches is known as the "division of power" - the power is distributed to avoid power abuse, so that no instance has unlimited power.
The fact that the three branches are overlapping is known as "checks and balances" - the branches check the other ones (whether their function is lawful) and balance each other.
According to the statement above: "Identify the portion of information that was missing during Darwin's time that fully explained variation and allowed Darwin's theory of evolution to become accepted."
The answer is: an understanding of genetics.
Hope this helps.
