In a way, all of the options are correct: but most of them are not very explicit and too general. For example, a formal scientific study will as a result provide some insight into the topic: but this is not the direct goal of the study.
The best answer is that formal, scientific studies have the aim of testing the hypothesis- this is the correct answer.
No, violence is never the answer to any solution to the world, just look at our troops fighting over in the Middle East? We've been at this war for years and all it has done was created more conflict, violence can also result to death. Such as gun violence!
But considering the fact that not most people take the time to sit and talk about it, which I believe the best way to solve a problem is... just to sit down and take the time to talk about it, not to get physical or pick up a gun and end a life.
This isn't an answer. There's nothing italicized
I don’t know the answer to your question but I hope someone helps you