Final answer:
The possessive form of the noun 'boys' is used in this sentence to show that the courage belongs to the boys.
Step-by-step explanation:
The correct answer is B. The school’s principal was quick to praise the three boys’ courage.
In this sentence, the possessive form of “boys” is used to show that the courage belongs to the boys. The apostrophe is placed after the plural form of “boys” to indicate possession. Therefore, the correct sentence should be “The school’s principal was quick to praise the three boys’ courage.”
The possessive form of a plural noun is formed by adding an apostrophe after the plural form of the noun. For example, if you want to show possession for the plural noun “dogs,” you would write “the dogs’ bones” with an apostrophe after the “s” (dogs’).