Read this excerpt from “The Medicine Bag.”

My buddies passed in a single file and shook his hand as I introduced them. They were so polite I almost laughed. “How, there, Grandpa,” and even a “How-do-you-do, sir.”

“You look fine, Grandpa,” I said as the guys sat on the lawn chairs or on the patio floor.

“Hanh, yes,” he agreed. “When I woke up this morning, it seemed the right time to dress in the good clothes. I knew that my grandson would be bringing his friends.”

What does the dialogue in this excerpt suggest about the characters?

- Grandpa is offended because Martin is ashamed to introduce him to his friends.

- Grandpa understands Martin’s need to impress his friends, and Martin is relieved.

- Martin’s friends treat Grandpa with more respect than Martin does during the visit.

- Martin feels angry and guilty because his friends almost laugh at his grandpa.