The arousal of anger is sometimes a legitimate artistic aim, and every legitimate artwork that has this aim calls intentionally for concrete intervention in the world.
Conclusion
It's wrong to say that . (i.e. At least some legit art does not have concern for beauty as a characteristic)
Evidence
Sometimes legit art aims to arouse anger and calls intentionally for real world action.
Evaluate
We have to get from what we know is a characteristic of some legit art (aims to arouse anger / calls for concrete intervention) to what the conclusion is trying to say is not a characteristic of some legit art (concern for beauty).
Goal
Look for an answer saying, , or an answer saying, .