Which line from “The Medicine Bag” best illustrates Martin’s conflict with Grandpa’s arrival?

“Yet I was so proud of this eighty-six-year-old man, who had never been away from the reservation, having the courage to travel so far alone.”
“His get-up wasn’t out of place on the reservation, but it sure was here, and I wanted to sink right through the pavement.”
“Soon after our visit to him, Grandpa decided that he would like to see where his only living descendants lived and what our home was like.”
“My kid sister Cheryl and I always bragged about our Sioux grandpa, Joe Iron Shell.”