The theme of Washington Irving’s Rip Van Winkle is（ ）.

The theme of Washington Irving’s Rip Van Winkle is（ ）.
A、the conflict of human psyche
B、the fight against racial discrimination
C、the familial conflict
D、the nostalgia for the unrecoverable past
【正确答案】：D
【题目解析】：华盛顿·欧文的《瑞普·凡·温克尔》的主题是对无法挽回的过去的怀念。