Which word could best replace the underlined word as it is used in the paragraph? Despite his age, my hardy grandfather will spend a week in the wilderness all by himself. He sets up camp in a green meadow. Then he climbs up steep granite slabs of rock to a mountain lake where he’ll fish for trout that he cooks over an open fire. Sometimes, he climbs all the way to the peak just to take in the view of the mountain range. A. adventurous B. resilient C. timid D. lonely