Explanation:

Here’s what you’re looking at:

- Annaprasana: This is the first solid-feeding ceremony. Usually happens when the baby is 6-8 months old. Think “rice-eating” for the first time.

- Upanayan: This one is the sacred thread ceremony. It marks the starting point of formal education, mostly for boys in some Hindu communities.

- Gudakarma: Actually, this isn’t a recognized Hindu sanskara. It looks like you might have meant “Chudakarana,” which is the Mundan (head-shaving) ceremony, not “Gudakarma.”

- Samavartana: This is the graduation ceremony, wrapping up Vedic studies—not connected to childhood hair-cutting at all.

The Mundan ceremony, or the first tonsure, is called Chudakarana (sometimes spelled Chudakarma). None of the options you listed are quite right, but if you must pick the closest, here’s the honest breakdown:

- None of these options exactly matches Mundan/Chudakarana, but Gudakarma seems like a misspelling or confusion for Chudakarana. However, strictly speaking, your answer is not the textbook name.