Answer:
Mikhail Sergeyevich Gorbachev[e] (born 2 March 1931) is a Russian and former Soviet politician. The eighth and last leader of the Soviet Union, he was the General Secretary of the Communist Party of the Soviet Union from 1985 until 1991. He was also the country's head of state from 1988 until 1991, serving as the chairman of the Presidium of the Supreme Soviet from 1988 to 1989, chairman of the Supreme Soviet from 1989 to 1990, and president of the Soviet Union from 1990 to 1991. Ideologically, Gorbachev initially adhered to Marxism–Leninism, although he had moved towards social democracy by the early 1990s.
Answer: C. <u>Maria Theresa</u>
Explanation: In the 1740's this lady came to the Austrian throne and proved a capable leader.
The trails and the conditions were very rough, and they struggled to traverse across these trails. Also, the weather was very bad and many of the settlers got sick and died from disease along the way