A significant agricultural export from Sikkim is:

Rice
Tea
Cardamom
Wheat

The correct answer is: c) Cardamom

Cardamom is a spice that is native to the Indian subcontinent. It is the third-most expensive spice in the world, after saffron and vanilla. Cardamom is used in a variety of cuisines, including Indian, Middle Eastern, and Scandinavian. It has a strong, sweet, and slightly minty flavor.

Sikkim is a state in northeastern India. It is the second-smallest state in India, after Goa. Sikkim is known for its beautiful scenery, including mountains, forests, and lakes. It is also known for its unique culture and traditions.

Cardamom is a significant agricultural export from Sikkim. It is grown in the high altitudes of the state. The cardamom produced in Sikkim is considered to be some of the best in the world.

The other options are incorrect. Rice is a staple food in many parts of the world, but it is not a significant agricultural export from Sikkim. Tea is also grown in Sikkim, but it is not as important an export as cardamom. Wheat is not grown in Sikkim.