1.The Trans-Arabian Pipeline Company was a company created as joint venture by Standard Oil of New Jersey, the Socony-Vacuum Oil Company, the Texas Company and the Standard Oil of California in order to run and build the Trans-Arabian Pipeline.
2.Basically it shut down due to various political and economic reasons. The part of the pipeline was after the six-day war under the control of Israel, but they allowed it to function. The constant bickering over transit fees between Syria, Saudi Arabia, Lebanon and the pipeline breakdowns as well as the development of bigger oil tankers led to the closing of the portion of the pipeline. Saudi Arabia closed the rest after Jordan supported Iraq in the first Gulf War. The company became the subsidiary of Aramco and as the oil stopped flowing Aramco closed the subsidiary.
It's a hard choice between A and D, but I think A leans more closely to the answer. The whole point of the Articles of Confederation was trying to make a unifying Union while keeping the states' independence.
One persons focus of control is one person's impact on a situation. Circumstance is beyond one person's control but influenced by everyone's interactions to the situation.