You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

Category: 1998 BESTSELLERS 
Clue: 35 years after her death, she's the subject of a new collection of poems by her husband
sylvia plath

Category: U.S. PRESIDENTS 
Clue: 1 of the 3 U.S. Presidents to run on a third-party ticket after having already served as president
teddy roosevelt, martin van buren & millard fillmore

Category: 20th CENTURY SHIPS 
Clue: This British ship was named for a Roman province established in the area of Portugal in 27 B.C.

the lusitania