The correct answer is b) Trawler.
A trawler is a type of fishing boat that uses a trawl net to catch fish. Trawlers are the most common type of fishing vessel in the world, and they are used to catch a variety of fish, including cod, tuna, and shrimp.
Trawlers are typically powered by diesel engines and have a large net that is dragged along the seabed. The net is held open by a series of floats and weights, and it catches fish as it is dragged through the water.
Trawlers are a controversial type of fishing vessel, as they can damage the seabed and catch non-target fish. However, they are also an important part of the fishing industry, and they provide a livelihood for many people around the world.
The other options are:
a) Catamaran: A catamaran is a type of boat that has two hulls. Catamarans are often used for racing and cruising, and they are also used for fishing in some parts of the world.
c) Canoe: A canoe is a small boat that is typically made of wood or fiberglass. Canoes are often used for recreational purposes, such as fishing and camping.
d) Yacht: A yacht is a large boat that is used for pleasure. Yachts are often equipped with luxurious amenities, such as swimming pools and spas.