Final answer:
Jerry is described as adventurous with a close and protective relationship with his mom in 'Through the Tunnel'.
Step-by-step explanation:
For the character Jerry in “Through the Tunnel”, the correct description would be adventurous, and his relationship with his mom at the beginning of the story is close and protective. This is seen in how Jerry is eager to explore and take on new challenges, yet his mother shows concern for his safety and wishes to keep an eye on him, balancing her care with giving him some freedom. This relationship is pivotal as it sets the stage for Jerry's personal journey and growth throughout the story.