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. Source 1.The classic oats meal, if made with very little or no oil, is a very good source of protein. 2.She was called upon to source a supply of carpet as the director had grown fond of it. 3. My military sources have informed me about a reduction in strategic nuclear weapons.