Answer:
Options A, B, C, D and E should serve as a warning sign for potentially aggressive people.
Explanation:
All of the signs serve as a warning sign for potentially aggressive people. Option A and Option C talks about how a person does not respect or not care about the others: when you talk over someone, you are demonstraining, in a sort of passive way, that what the other person is saying is not important or isn't right, and what you are saying is what the others have to listen. When a person does not follow or respect rules, they are showing that things have to go their manner, and doesn't respect teamwork; the inability to be in teams (and not only in the sports field) speaks about how that person is selfish and self-centered. All of these, added to the person being argumentative, it is a dangerous combination. Not only that person doesn't care or even respect others, but they will also argue when something does not go as they wanted and will blame the others for it.
Option D might be interpreted as a way of manipulation: an aggresive person will help the others, will do anything in their power to try to help someone who needs it, but in the end they will want something in return. And if the person that they helped, doesn't give anything in return, they will make them feel bad saying that they were the only ones who helped them when they need it the most or they can also say that they owe them for the favour.
Option E is an enhancer for any agressive or violent situation. A person that consumes hard drugs can have multiple consequences, from loss of consciousness or memory, trigger emotions (sadness, nostalgia, anger, etc.), get involved in violent situations and even cause death.
In summary, all of these options separately serve as warning signs, but combined are extremely dangerous and we have to be alert.