Choose the correct option to fill in the blank in the sentence. 'Can…

The correct answer is Option (4) → No Article

Here's why:

• Sanskrit is a specific, identifiable language, not a general concept. Therefore, using articles like "a" or "the" wouldn't be appropriate.
• Languages, in general, are often used without articles when referred to in a broad sense. This is because the focus is on the ability to speak the language, not on a specific variety or instance of it.
• Hence it would be "Can you speak in Sanskrit?"