Read the sentence carefully, then cho ose the c orrect answe r for the un derlined word. The children's books are already m arked. a feminine pronoun first person pronoun possessive noun singular noun

## Step 1<br />The problem is asking us to identify the grammatical category of the underlined word in the sentence "The children's books are already marked.". The underlined word is "children's".<br /><br />## Step 2<br />The word "children's" is a possessive form of the noun "children". In English, possessive nouns are formed by adding an apostrophe and an "s" to the end of a noun. This indicates that the noun is owning something.<br /><br />## Step 3<br />In this case, "children's" is indicating that the books belong to the children. Therefore, it is a possessive noun.