They are both considered metaphors, yes. The light of my life means the happiest thing that you have ever known. It's kind of an exaggeration, but it's metaphor. Roller coaster of emotions means that your mood swings up and down and all around like a roller coaster. I hope this helps you!
Making a gift basket for someone in need, helping with dinner, smiling at people you don’t know, returning lost things, helping clean a classroom, babysitting so parents can go out, giving your dogs a treat, helping a friend with their book bag etc
The answer is 'C'-Crackling is the ononatopeia or sound that wood makes when it burns.
