After the II war, the African Nationalism emerged late 1940s and early 1950s because three main reasons: The first one was that nearly two million African soldiers who were part of the II war (1939-1945) were discontent after coming back to the colonial states to be treated as slaves. The second reason was that Kwame Nkrumah father of the Pan Africanism, influenced the African Nationalist leaders against the colonial rules to reach freedom and finally the third reason was to maintain the unity among them after the rejection of colonies which oppressed African Nationalist.
The correct answer is: Voters have a wider choice of candidates and ideas.
In a bi party system there are only 2 options which in general have a very narrow ideology and therefore divide a country. As a voter you may not feel identified with any of them. When more parties participate, different ideologies are represented and those voters have a greater probability to find one that suits them. Also they have more chance that their ideas are represented in Congress.
1441-1460AD
Hope this helps.
man insight gives him patience, and his virtue is to overlook an offense
A person's wisdom yields patience; it is to one's glory to overlook an offense
Wisdom, Patience, Forgiveness September 19, 2013. A man's wisdom gives him patience