Mark sees $20 on the floor at the grocery store. He looks around, but no one is nearby. He doesn't know whether to keep the money or turn it in to the store. Mark reasons that depending on the person, $20 can be a lot of money. There's a chance someone will come back looking for it, but there's also a chance they won't. In addition, Mark's own grocery budget has been pretty tight lately, and he isn't stealing if it's lying on the ground without a clear owner. Ultimately, he decides to keep the money because at least he can be sure it gets put to good use, rather than just added to the store's register if no one claims it. What ethical theory is he primarily using to make that decision