Final answer:
The phrase 'glass half full' is a figure of speech indicating optimism. It describes a person who sees the positive potential in situations. Therefore, Trey is optimistic.
Step-by-step explanation:
The figure of speech "glass half full" refers to a perspective of optimism. When someone is described as a "glass half full kind of guy," it means that they tend to see the positive side of things rather than focusing on the negatives. In the context of the student's question, Trey being a "glass half full" person means that he is optimistic about the situation, hence the correct answer is A) Trey is optimistic. This is evident in the way Trey sees Andy's loss of a job not as a setback but as an opportunity to pursue bigger and better things, demonstrating a positive outlook.