From the words or group of words lettered A to D, choose the word or group of words that best completes each of the following sentences. Mary and Jane are a...

Answer Details

The most suitable option to complete the given sentence is "each other". "Each other" is used when referring to two people who are involved in the same activity. In the given sentence, Mary and Jane are two people who are fighting, so the correct word to fill in the blank is "each other".