The following sentence has been divided into parts. One of them may contain an error. Select the part that contains the error from the given options.
A owl was / hooting throughout / the night.

Correct option is A

Option (a) contains an error.
Explanation:
· "A owl" is incorrect because “owl” begins with a vowel sound.
· The correct article is "an", not "a".
· Correct sentence: An owl was hooting throughout the night.
Grammatical Rule Used:
Use “an” before words that begin with a vowel sound (a, e, i, o, u).
Example: An apple, an hour, an honest man.
�� Information Booster: Even if a word starts with a consonant letter (like “honest”), if it sounds like a vowel, use "an".