Evaluation of Arguments Regarding Wrong Doings

First read chapter 15 section 3, and then watch the video linked to below. (Be warned that it is not enjoyable viewing. If you are a normal person, it might make you cry.)
https://www(dot)peta(dot)org/videos/meet-your-meat/
Finally evaluate the following argument—which is logically valid—premise by premise. Copy and paste the argument itself into your paper, which should be at least 300 words not counting the argument, with a word count at the end. (Define “gratuitous suffering” as suffering that does not prevent greater suffering or produce pleasure that outweighs it.)
1. If an activity causes gratuitous horrific suffering, then that activity is morally wrong.
2. Raising animals on factory farms and killing them in slaughterhouses causes gratuitous horrific suffering.
3. Therefore raising animals on factory farms and killing them in slaughterhouses is morally wrong.
4. If an activity is morally wrong, then paying others to engage in that activity is morally wrong.
5. Therefore paying others to raise animals on factory farms and kill them in slaughterhouses—i.e. buying factory-farmed meat products—is morally wrong.