Final answer:
When Jason pulls out the envelope, he thinks about its contents and the possible implications and significance of it.
Step-by-step explanation:
When Jason pulls out the envelope that his dad gave him, he thinks about the contents of the envelope and what it could mean. He may be curious about why his dad has given it to him and what it could potentially reveal or contain. It is likely that Jason is thinking about the possible implications and significance of this envelope.