a
an
the
none of the above
Answer is Right!
Answer is Wrong!
The correct answer is: a
The article “a” is used before singular nouns that refer to a general or unspecified thing. In this case, the exercise is not specific, so we use “a”.
The article “an” is used before singular nouns that begin with a vowel sound. In this case, the exercise does not begin with a vowel sound, so we do not use “an”.
The article “the” is used before singular nouns that refer to a specific thing. In this case, the exercise is not specific, so we do not use “the”.
The article “none of the above” is used when none of the other options are correct. In this case, “a” is the correct answer, so we do not use “none of the above”.