Well to start of with u can cross out a and c so now your left with b and c
So the answer is (D)
The answer is A. The economic crisis of 2008.
Charlemagne's crowning made the Byzantine Emperor redundant, and relations between the East and the West deteriorated until a formal split occurred in 1054. The Eastern Church became the Greek Orthodox Church by severing all ties with Rome and the Roman Catholic Church — from the pope to the Holy Roman Emperor on down.
The Mexican War happened in 1850 until 1859
There are alot of factors that make it hard for archeologist and historians to search about the indus valley.the most highlighted factors are the enigmatic nature of Indus valley civilization means there is no clear connection to any continuous literary traditions.they have a much harder time imagining the life of Mohenjo-Daro because there isn't any reliable information about the culture of it. the fact that they cannot read the language(s) of the Indus valley means a lot!
