The United States of America joined World War II when Pearl Harbor was bombed...if you're referring to the 2nd World War.
Answer:
Your answer is C Savings accounts are riskier then hedge funds.
The answer is Faction.
Factions are described as pockets of organized dissent within a larger group, especially in the context of politics.
However, two political parties competing in a general election is NOT an example of a faction.
A single political party, breaking into two, on the basis of divergent views and objectives is a classic example of a faction.
Your answer would be option A