Limited grazing land due to Sikkim’s terrain is a challenge for:

The correct answer is: d) All of the above.

Sikkim is a mountainous state in India with a terrain that is mostly covered by forests. This makes it difficult to find land that is suitable for grazing livestock. As a result, large-scale livestock farming is not a viable option in Sikkim. Free-range poultry rearing is also challenging, as the birds need access to open space in order to forage for food. Expanding fodder cultivation is another option, but this would require clearing more forest land, which would have a negative impact on the environment.

In conclusion, limited grazing land due to Sikkim’s terrain is a challenge for large-scale livestock farming, free-range poultry rearing, and expanding fodder cultivation.