आपल्या तोंडावाटे निघणाऱ्या मूलध्वनींना काय म्हंटले जाते ?

The correct answer is Option B (वर्ण).

Key Points:
• This is a standard definition from Marathi Varnamala (Alphabet/Phonology).
• Definitions to remember:
• वर्ण (Varna/Phoneme): The basic, fundamental sounds (मूलध्वनी) that come out of our mouths are called Varnas. They are the smallest spoken units.
• अक्षर (Akshar/Syllable): When these spoken Varnas are written down using specific symbols (script) so they don't vanish, they become Aksharas (अ-क्षर = that which does not get destroyed).
• शब्द (Shabda/Word): A meaningful group of Aksharas.
• वाक्य (Vakya/Sentence): A meaningful group of words.
• Since the question specifically asks about the *spoken fundamental sounds* (तोंडावाटे निघणारे मूलध्वनी), the correct grammatical term is वर्ण (Varna). Option 2 is correct.
• Key Takeaway: The fundamental sounds (Muladhvani) produced by our mouth are called Varnas.