Answer:
The answer is B: Scientists are confused by the different ways the rocks move, and the theories involving wind, ice, and mud have not been proven.
Explanation:
In the second paragraph, it is said that scientists have been baffled by the variety of rock movement. Then, there was a description of their movement and some possible reasons for why it happens. Some of the reasons(wind, ice and mud) were suggested by scientists. The paragraph then ends by saying that none of the theories have been confirmed by research.
This is conveyed very well by option B therefore it the correct option as the main idea of the paragraph.
She is supporting an inference from the text. An inference is something that is implied, and the person saying they've "witnessed much fighting" infers that they're old, whereas "I am wounded with iron" can be taken to mean he's been wounded by a weapon like a sword.
As the myth goes, Icarus was too excited and was not paying attention so he died.
The Mandela effect is a real essay since I have read many essays and huge body paragraphs with Mandela effect in it....So from background knowledge alone, your answer is True, the Mandela effect was in a real essay :)
Readers can learn that it's important to cite and explain what you're citing