It is obvious that paul gauguin's vision after the sermon is a synthetic painting because

I believe the correct answer is: it combines unnaturalistic color with symbolism.

The “Vision after the Sermon” is an oil on canvas painting by French artist Paul Gauguin, painted in 1888. It is obvious that Paul Gauguin's artwork “Vision after the Sermon” is a synthetic painting because it combines unnaturalistic color with symbolism.