Which of the following is not a breed of goat?

Answer: Option C

This question asks about different breeds of goats. Let's go through the options:

Option A: Kashmiri - Kashmiri is a breed of goat that originates from the Kashmir region. They are known for their fine wool and are found in the northern parts of India.

Option B: Gaddi - Gaddi goats are also a breed of goat found in the Himachal Pradesh region of India. They are used for milk and meat production.

Option C: Cheviot - Cheviot is not a breed of goat, but a breed of sheep. They are a hardy breed of sheep, found mainly in the Cheviot Hills in the United Kingdom.

Option D: Chamba - Chamba is a breed of goat found in the Chamba district of Himachal Pradesh, India. These goats are known for their milk and meat production.

Therefore, the correct answer is Option C: Cheviot because it is a breed of sheep, not a goat.