What is breeder reactor?a)Uses only U 235 as a sourceb)Uses moderatorc)Produces more fuel than it consumes

A breeder reactor is c) Produces more fuel than it consumes.

Breeder reactors are a type of nuclear reactor that generates more fissile material than it consumes. These reactors are designed to extend the supply of fuel for nuclear power generation, particularly for countries that have limited access to natural uranium.

Breeder reactors achieve this by using a fertile material, such as uranium-238 or thorium-232, in addition to the fissile fuel. The neutrons from the fission of the fissile fuel convert the fertile material into more fissile material, or "breed" new fuel.

So, while breeder reactors do consume some fuel during operation, they produce more fuel than they consume, which can then be reprocessed and used in new fuel assemblies.