SPOT THE ERROR:A biology teacher told us that a orangutan is strong enough to lift up the side of a small car.

Explanation

"A orangutan" is incorrect. It should be "an orangutan" because "orangutan" starts with a vowel sound. There is an error here.The error in the sentence is the use of "a" before "orangutan." The correct phrase should be "an orangutan" because "orangutan" starts with a vowel sound. Thus, the correct option to mark the error is B) A orangutan.