According to the news, the ice from Greenland provides information about

A．were attacked at refugee camps.
B．were angry at delays in departure.
C．attacked Cuban refugee camps last week.
D．will be increased to 2,000.

A．To look into the mental health of old people.
B．To explain why people have negative views on old age.
C．To help correct some false beliefs about old age.
D．To identify the various problems of old age.