Which of the following are run-ons? there can be more than one correct 1. There's been a lot of research with dogs and how dogs interact with people. 2. It's become very clear that dogs perceive us as being different than themselves, as soon as they see a human, they change their behavior. 3. The way a dog plays with a human is completely different from the way it plays with a dog. 4. We've yet to discover anything about cat behavior that suggests they have a separate box they put us in when they're socializing with us. 5. They obviously know we're bigger than them but they don't seem to have adapted their social behavior much. 6. Putting their tails up in the air, rubbing around our legs, and sitting beside us and grooming us are exactly what cats do to each other.
A. 1
B.2
C.3
D.4
E.5
F.6