In the given question, a word has been given and there are three ways in which the word has been used, in similar or different forms. You need to see which of the sentences have correctly used the highlighted word, and mark that as your answer. SHIFT
I. The miner descended into the dark shift      of the mine, equipped with his helmet and flashlight.
II. She decided to shift her focus from academics to pursuing her passion for art.
III. The night shift at the hospital begins at 7 p.m. and ends at 7
a.m.