In the following sentence, there is a missing article. Select the missing article from the options given below:
________ Indus River is the longest river in India.

The

The correct article to use in the blank is the.(OPTION 1)

The word Indus is part of the name of a specific river, the Indus River. Therefore, we use the definite article the before it.

The other options are incorrect.

• An is used before singular, common nouns that begin with a vowel sound.
• A is used before singular, common nouns that are indefinite and do not begin with a vowel sound.
• None of these is not an article.