Explanation:

- Correct Answer: 22

- The Eighth Schedule of the Constitution of India lists the official languages recognized by the Indian constitution.

- Initially, the Constitution only included 14 languages in the Eighth Schedule.

- Over time, through subsequent constitutional amendments, the list has expanded to include a total of 22 languages.

- These languages are referred to as "scheduled languages."

- The recognition of scheduled languages aims to promote and preserve the linguistic diversity of India.

- Option 118, Option 320, Option 414, and Option 58 are incorrect as they do not correspond to the number of languages listed in the Eighth Schedule of the Indian Constitution.