The largest fish is

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Hint: India is one of the most important countries that produces fish through aquaculture in the world. The three characteristic Indian fishes, such as mrigal (Cirrhinus mrigala), catla (Catla catla) and rohu (Labeo rohita) increases the size of making to the range of 70 to 75 percent of the total freshwater carp production.

Complete answer:
To answer this question, first, we need to know about the fish production. Fish are a very high source of proteins and constitute great nutritional value. Fish production was first dependent on fish capturing. But many of the caught fishes that were used for industrial purposes and were rarely taken as food by humans. So, a backup method was provided to raise the fish production that was confined to farming of commercially vital aquatic organisms.
This is termed as aquaculture.

Now, let us find the solution from the option.
A.Cetorhinus : It is also termed as Gadus. It is a kind of benthopelagic fish. It is used as a consuming fish for humans. It is the second largest living shark
B.Carcharhinus : It is also known as dusky shark. It consists of eight extinct species.
C.Carcharodon : It is also termed as white shark but it is not so large.
D.Rhincodon : It is also termed as whale shark and it is the largest of all the sharks that are living till

Hence, the correct answer is option (D)

Note: Shagreen is a type of rawhide that is the skin of sharks consisting of rough untanned skin, historically from a horse's or onager's back, or from shark or ray. In modern times, shagreen is developed from the skins of commercially farmed Asian stingrays. It is used as an abrasive material due to its pointed nature.