Use reasoning to lead to the answer of the following question:
The person was glad that his father had helped him.  If his father wasn't there, he'd have been what?\nOptions:\n- regretful\n- hatred\n- downcast\n- unhappy\n- disappointed
 Reasoning process:
User
Disappointed is being sad because one hasn't fulfilled one's hopes and expectations. People get disappointed when their family members don't help them. Father is a family member. Therefore, the final answer is disappointed.
Assistant