Someone who moves from place to place is called a nomad
I believe the answer is: B. because his scientific endeavours in electricity were noteworthy.
King Louis was only in his early twenty's at that time. Because of many of Franklin's work in electricity field, he became very popular in French and King Louis wanted to meet him in order to discuss the application of electricity in French, and even willing to pay Franklin with a huge amount of money for it.
... as a response to US support of Israel in its 1973 war against a coalition of Arab states led by Egypt and Syria.
OPEC stands for the Organization of Petroleum Exporting Countries. Within that, there was also the Organization of Arab Petroleum Exporting Countries (OAPEC), formed in 1968. In 1973, OAPEC said they would cut oil production "until the Israeli forces are completely evacuated from all the Arab territories occupied in the June 1967 war." (The 1973 war was being fought to regain control of territories lost to Israel in 1967.) Egypt and Syria were both members of OAPEC, and they and other Arab nations were seeking leverage in the struggle with Israel and positioning for post-war settlements.
That would be Adolf Hitler, as stated in this source (History.com) "Hitler appointed a new Nazi government, and on March 13 the Anschluss was proclaimed. Austria existed as a federal state of Germany until the end of World War II, when the Allied powers declared the Anschluss void and reestablished an independent Austria."
His belief that the government could only do so many things to help, in the sense that they were limited, led him to do very little during the depression.