They are the … dresses. — Choose the option that best completes the gap(s)

Analyze the question: The sentence "They are the ...... dresses" needs a word showing that the dresses belong to the babies. That calls for a possessive form.

Concept: To form the possessive of a noun:

• Singular noun: add 's → baby's
• Plural noun: first form the plural, then add an apostrophe if it ends in -s → babies'

For nouns ending in a consonant + y, the plural changes y to ies (baby → babies).

Working through the options:

• A. babys' is wrong. "Babys" is not a correct spelling in any form.
• B. baby is wrong. It is not possessive, so it does not show ownership. (Even "baby's" would only mean one baby.)
• C. babies is wrong. It is a plural with no possessive marker, so it does not show that the dresses belong to them.
• D. babies' is correct. It is the plural possessive, meaning the dresses belong to more than one baby.

The subject "They" is plural, which supports the idea of several babies owning the dresses. "They are the babies' dresses" is correct.

Answer: D, babies'

Tip: First decide whether the owner is singular or plural. Make the plural correctly (baby → babies), then add the apostrophe. Examples: girl's (one girl), girls' (many girls), baby's (one baby), babies' (many babies).