From the words lettered A to E, choose the word that best completes each of the following sentences. The..........of the NATO countries have been alerted ab...

From the words lettered A to E, choose the word that best completes each of the following sentences.
The..........of the NATO countries have been alerted about the possibility of an attack

Answer Details

The word that best completes the sentence is "commanders-in-chief" (option C). The sentence is discussing a group of people who have been alerted about a potential attack, and the word "commanders-in-chief" refers to the leaders or highest-ranking officials of a military organization or alliance. In this case, the NATO countries are likely working together to prepare for a potential attack, so the commanders-in-chief of those countries would be the ones responsible for overseeing those preparations. The other options are not correct because "commander-in-chiefs" (option A) is not a proper plural form of the phrase, "commander-in-chief" (option B) has a typo, and "commander -in-cheif" (option D) has a spelling error.