b) whether the person perpetrating bullying is struggling with something.
Explanation:
Nobody ever deserves to be bullied, which rules out choice (A). Bullies almost always take out the anger the have inside on others, and what they say to their victims is what others say to them or how they really feel about themselves.
Air is a homogeneous mixture. Heterogeneous mixture means that the components are not evenly distributed, just like a mixture of sand and water where we can identify the individual components visually.
