The correct answer is B: BARTER
Bartering is the exchange of material goods or services for other objects or services, and differs from the usual sale in that it does not intermediate the money as a representative of the value in the transaction. The contract whereby two people access a barter is called a swap.
This effect is called proactive interference.
Proactive interference (PI) is a type of explanation for why we forget or cannot recall information. The PI effect means that forgetting occurs because old memories interfere with our ability to form memories. An example of the PI effect is when you try to learn or memorize a new phone number, however, phone numbers that already exist in your memory interfere with your learning of the new phone number.
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.
