"The wrinkly elephant lumbered to its water trough." Wrinkly is an adjective.
Answer: B. He thinks the request shows Yun Ok's foolishness.
The hermit thinks the request shows Yun Ok's foolishness because her husband's condition is not like a disease or illness which can be cured by a potion or medicine. The truth is, she doesn't need any potions, amulets, drinks, or medicines just to bring back her husband to his old self again. The hermit wants to show to Yun Ok that she only need tolerant and gentle care to change her husband.
Prefixed suffixes and combination
I learned a lot from reading the article "The Weather in China."
D. Weather, because it is part of the title.
Hope this helps.