Who massacred 21% of Cambodia's population?

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Pol Pot

The killing fields document death. From 1975 to 1979, Pol Pot and his Khmer Rouge soldiers killed 1.7 million Cambodians, or 21 percent of the population, according to Yale University's Cambodia Genocide Program.

Explanation:

The correct option is;

D. A couple needs to get a mortgage loan to buy a home after moving to a new city

Explanation:

A retail bank is the banking service sector meant for banking and other financial service provisions to customers who are individual consumers rather than larger institutions or businesses

Retail banking provides the means by which individuals that make use of the banking services to look after their savings, obtain credit, and make deposits securely

A retail bank also provides personal loans, certificate of deposit, credit cards, savings and checking accounts and mortgages