WILL MARK THE BRAINLIEST!!!! PLEASE HELP THIS IS HISTORY!

europe aging population an economic issue?
Old people are not retiring and letting younger people enter he workforce

There are now more retired people than working than working people in many countries

Many people have retired, leaving fewer people working and earning wages

Older people demand more goodso and services than countries can provide

Which of the following developments has caused recent controversy between richer and poorer members of the european union?

The use of the eurology

The cost of caring for refugees

The decline in the fertility rate

The use of nuclear energy