Answer: Directional Selection
Explanation: Directional selection also called positive selection, is a form of natural selection in which natural forces of nature favours an extreme phenotype over other phenotype I.e when environmental pressure favours one phenotype more than another invariably forcing a population to evolve towards a trait.
The answer is B: had twice as many soldiers as Lee.
The siege of Petersburg was a decisive Yankee victory which led to the retreat and surrender of confederate Gen. Robert E. Lee. The victory by the union at Petersburg meant that Lee would be forced into a role not familiar to the fantastic Southern commander. If General Lee would have a larger army, a few good peers, and more support, he could possibly have extended the war. However, the war was over and the Siege of Petersburg sealed everything.
Thing that came before the constitution and it had a weak federal government
All the nations working together for one goal( like cut down on pollution)
