THE ANSWER IS RAILROADS!!
I believe it's C. But don't take my word for it, it's just what I think it is but it would be wrong.
OPEC, its the countries that make/ produce oil for us. They are mostly in the Middle East
Answer: A. Gender stereotyped curriculum
Explanation: The example in the context above portrays a gender stereotyped curriculum. Stereotype refers to an overestimated belief or notion about a certain category of people or cultural sect. The scenario above depicts an overgeneralized belief that only a particular gender(male) , composed of David Sarnoff, Lee DeForest, and Edwin Armstrong were responsible for the entire development of radio. While also underestimating or downplaying the contribution of the female gender towards the development.
The correct answer is The schism resulted in two separate churches: the Eastern Orthodox Church and the Roman Catholic Church.
The Great Schism was the event that caused the rupture of the Church, separating it in two: <u>Roman Catholic Apostolic Church</u> and <u>Catholic Apostolic Orthodox Church</u>, from the year 1054, when the leaders of the Church of Constantinople and the Church of Rome mutually excommunicated.