In 911, Charles the Simple did something that would have a profound effect on French British history. What was it?

He abdicated his throne to the Vikings.
He won the Battle of Hastings.
He allowed the Vikings to settle on the northwest coast of France.
He refused an audience with Rollo, the Viking.

the answer is use of support  

could you give me the options ?

worldwide, 780 million people do not have access to an improved water source. an estimated 2.5 billion people lack access to improved sanitation (more than 35% of the world's population)

native americans suffered high rates of poverty and unemployment.

during the late 1960s and early 1970sthe need for political militancy grew among the native americans. throughout the 1960s, they had been the nation's poorest minority group, the most deprived group, according to practically every socioeconomic measure. in 1970, the indian unemployment rate was 10 times the national average, and 40 percent of the native american people were below the poverty line.