Explain what kind of art was being created during(New Stone Age)

Weaving, architecture, megaliths, and more sophisticated pictographs that were well on their way to becoming writing were among the "new" arts that emerged during this period. The older arts of sculpture, painting, and ceramics have stayed with us (and continue to do so). Each was greatly refined throughout the Neolithic age.

1st and 3rd : ) now lemme smash

the term is einsatzgruppen