Step 1: Concept of Vedapurusha. The Vedas are personified as Vedapurusha, with different Vedangas (limbs of Veda) symbolically represented as its body parts.
Step 2: Vyakarana as an Anga. Vyakarana, the science of grammar, is likened to the Mukham (mouth) of Vedapurusha, as grammar provides structure and clarity to language, similar to how the mouth produces words and speech.
Step 3: Analysis of options. The provided options are analyzed: (1) Ghranam (nose) is not linked with Vyakarana. (2) Mukham (mouth) is correct, as Vyakarana is considered the mouth of Vedapurusha. (3) Chakshuh (eyes) are associated with Nirukta. (4) Shrotram (ears) are associated with Shiksha (phonetics).
Step 4: Conclusion. Consequently, Vyakarana is identified as the Mukham of Vedapurusha.