Answer:
A. building sea walls and not building levees
This is true - Italy has a aging population which is expected to life long - as is the case with most post-industrial societies, while Niger on the other hand expects its people to live not as long and at the same time has a younger population.
The white headscarves worn by the Mothers of the Plaza de Mayo symbolized peace or white doves. The white headscarves also symbolized the white diapers of their lost children.
Hope this helps! :)
D I’m not sure but I hope this helps