The correct answer is Alappuzha. Alappuzha is a coastal town in Kerala, India. It is famous for its coir industry and historical lighthouse. The town is also known for its backwaters, which are a popular tourist destination.
Coir is a natural fiber that is made from the husk of coconuts. It is used to make a variety of products, including ropes, mats, and carpets. The coir industry is a major source of employment in Alappuzha.
The historical lighthouse in Alappuzha is called the Lighthouse of Alleppey. It was built in 1862 and is one of the oldest lighthouses in India. The lighthouse is a popular tourist attraction and offers stunning views of the town and the backwaters.
The other options are incorrect. Kozhikode is a city in Kerala that is known for its spices and silk industry. Kollam is a town in Kerala that is known for its cashew industry. Kannur is a town in Kerala that is known for its tea industry.