The most likely a better use of David's time in order to prepare for teaching highschool students regarding the American history, is to go to museums alongside studying. Going to museum may be a better way of acquiring historical knowledge that is embedded in the replicas and the remains of ancient objects.
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.
"extolled" means to praise some thing highly.
Isnt the bill supposed to be vetoed in order for the bill to not be passed