The correct answer is:
Both poems warn against the dangers of embarking on a new journey.
"The Lady of Shallott" is a lyrical ballad about Elaine of Astolat, a young noblewoman confined in a tower on an island close to Camelot, who has heard that if she stares at Camelot directly, she will be cursed.
"Ulysses" is a poem in blank verse about a mythical hero who, facing old age, explains his uneasiness upon going back to his kingdom, Ithaca, after his far-ranging travels, because he still yearns to explore.