Which of the following is a correct pair of singular and plural?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → Criterion:Criteria
Plural of nouns ending in -on (from Greek):
A few nouns that came into English from Greek change -on to -a in the plural. So criterion → criteria. A criterion is a standard used to judge something.
Why the Other Options are Incorrect?
Option 1: Tooth:Tooths — Incorrect. Tooth forms the plural by changing its vowel. Tooth → Teeth.
Option 2: Ox:Oxes — Incorrect. Ox has an old plural ending in -en. Ox → Oxen.
Option 4: Goose:Gooses — Incorrect. Goose changes its vowel like tooth. Goose → Geese.