Each sentence contains four underlined phrases. Three of these phases have been correctly used, and one has been incorrectly used. Choose the phrase (from option) which best replaces the wrong phrases in the sentence. (Sentence Correction) Explorers embody the finest spirit in human nature which is to seek new challenges, discover new worlds and create new frontiers and one such rare achievement of the indomitable spirit is the ascending of Mount Everest by Hillary and Tenzing.