Question

unit test choose the option that correctly pluralizes the missing word in this sentence. the marks used to play tic - tac - toe are ______. choose 1 answer. a xs and os b xs and os c xs and os

Explanation:

When pluralizing single letters, an apostrophe + 's' is used to avoid confusion with other words or symbols. For the letters 'x' and 'o', their correct plural forms are 'x's' and 'o's'.

Answer:

A. x's and o's