Choose the word that is a necessary part of the underlined word.
harvest

A. autumn

B. stockpile

C. tractor

D. crop

Answer: Option D

Solution(By Examveda Team)

To harvest something, one must have a crop, which is the essential element for this item. Autumn (choice a) is not the only time crops are harvested. There may not be enough of a crop to stockpile (choice b), and you can harvest crops without a tractor (choice c).