Step 1: Understanding the Concept
This question tests the use of articles (A, An, The). Specifically, it deals with the use of the definite article "The."
Step 2: Key Formula or Approach
The definite article "The" is used before the names of unique objects, such as holy books, rivers, oceans, mountain ranges, and well-known buildings.
Step 3: Detailed Explanation
In the sentence, "Gita" refers to the Bhagavad Gita, which is a specific and well-known holy book of Hinduism.
According to the rules of article usage, the definite article "The" must be used before the names of holy books.
Examples: The Bible, The Quran, The Ramayana.
Therefore, the correct article to use is "The."
(A) The - Correct, as "Gita" is a holy book.
(B) A - Incorrect. "A" is an indefinite article used for non-specific singular countable nouns.
(C) An - Incorrect. "An" is an indefinite article used before vowel sounds.
(D) None of the above - Incorrect.
Step 4: Final Answer
The correct article to complete the sentence is "The." Therefore, option (A) is the correct choice.