Critical Reading > Sentence Completions
Choose the word or set of words that, when inserted in the sentence, best fits the meaning of the sentence as a whole.
Bolstered by his unflagging determination and ------- physical preparation, Tom Whittaker became the first amputee to successfully climb to the summit of Mount Everest.
(A) fortuitous
(B) assiduous
(C) heedless
(D) expeditious
(E) pedantic