"The" is the correct article.
The article "an" is used before words beginning with a vowel sound.
An is article used before words that start with vowel.
Article before the word useful
The indefinite article used before "ear" is "an", because "ear" starts with a vowel sound.
The article "a" is used before the word "useful" to indicate that it is a singular noun. In English grammar, "a" is an indefinite article used before singular nouns that begin with a consonant sound.
why we use an before hotel
The article "the" should be used before "MLA" because it stands for "Modern Language Association," which is a specific organization.
Because it has common noun in it...
The reference material article should be used before the ancient book named Geeta.
an mp
The article you are asking about is the definite article, also known as the word "the".