In which activity were folk singers in the early twentieth century often involved

There were a variety of influences in different parts of America in the early twentieth folk singers music. Generally, folk singers are active in the church activities that leads them to produce blends of gospel music, ragtime, blues, and jazz.

Ithink the answer is d) once again don't kill me if i got the answer wrong > _<

You do not see contemporary artist using chiaroscuro as much anymore, because it was used at a time when there were only candles and firelight for nighttime illumination. many of the paintings that used chiaroscuro did so to depict people who were around candlelight. this to illuminate their forms and create a dramatic effect. because we have modern electricity and light, the technique isn't seen as frequently in present day art.