The Phanerozoic is divided into three eras: the Paleozoic, Mesozoic, and Cenozoic. You could have googled the question.
There was no significance of Rappe of Nanking. they just want to show what power they though they had.
The correct answer here is B. The supplies they have are severely depleted thanks to the vandals that have destroyed not only their homes but also all of the provisions they had in stock. They are trying to feed the remaining population, 7000 of them, by rationing food from the single barn that was not destroyed.
Answer:
Probably C as that makes sense.
Because he tried pushing them out but got killed and the natives pushed out the rest of his men the irony tho