Question Detail
Question
Which of the following are irregular nouns?
Correct Answer
Option C is the correct answer.
Detailed Explanation
Nouns that do not form their plural by simply adding -s or -es (e.g., changing internal vowels like man/men, or endings like leaf/leaves) are classified as irregular nouns.
Hint
All the options show nouns that change form in the plural, not just add 's'.