The correct answer is option 3, Kerala. Kerala is known as the spice garden of India due to its rich biodiversity and perfect climate for growing spices. The state is famous for its production of a wide variety of spices such as black pepper, cardamom, cinnamon, cloves, and nutmeg. The coastal region of Kerala provides the ideal conditions for cultivating spices, with its fertile soil and humid climate. The spice trade has been an important part of Kerala`s history and culture for centuries, attracting traders from around the world. Kerala`s spice gardens not only contribute to the economy of the state but also make it a popular tourist destination for those interested in learning about the cultivation and processing of spices.