She believes they are an imperfect way of understanding a person’s expression.
Honestly, all of them can. I would select them all. Context is the only one that’s iffy, but context is also important because words can have connotative meanings that alter their meaning and tone.
Sometimes to use comparison's or like for example similes wich means like and metaphores meaning comparisons
Try b or d those are the most possible answers
Well i don't think anyone understood your question.