The Scientific Name of Rohu is:
A. Catla Catla
B. Anabas testudineus
C. Naja Naja
D. Labeo Rohita

Hint: A name used by biologists, in particular the taxonomic name of the genus and species-consisting organism. Usually, scientific names originate from Latin or Greek. A common name and a specific name make up the scientific name of each species.

Complete Answer:
> The rohu is a large, silver-coloured fish with a conspicuously arched head usually cyprinid in form. The overall weight of 45 kg can be attained by adult Rohu. Rohu primarily eats zooplankton during the early stages of its lifecycle, but it eats more and more phytoplankton as it grows. A herbivorous column feeder is a juvenile or adult, feeding mostly phytoplankton and submerged plants. It has modified, thin hair-like gill rakers, showing that by sieving the water it eats. Rohu achieves sexual maturity between the ages of two and five. During the monsoon season, they usually spawn, retaining above tidal reach to the centre of submerged channels. The Scientific Name of Rohu is Labeo Rohita.
> Catla, the second most important species after rohu, is used in major carp polyculture systems in India as the surface feeder component. In northern India, Indus plain and adjacent hills of Pakistan, Bangladesh, Nepal and Myanmar, Catla is native to the riverine system and was later incorporated into almost all riverine systems, reservoirs and tanks throughout India.
> Anabas testudineus, the climbing perch, is a species of fish in the Anabantidae tribe, the climbing gouramis. It is native to Asia, where it runs east to China from India and to the Wallace Line. It is an invasive species that can spend 6-10 hours surviving without water.
In India, Pakistan, Bangladesh, Sri Lanka, Nepal and Bhutan, the Indian cobra (Naja naja), also known as the spectacled cobra, Asian cobra, is a member of the genus Naja.

So, the correct option is D, Labeo Rohita.

Note: The pectoral fins on the dorsal surface of adult males are rough during the breeding season, whereas those of females are smooth. In ponds, wetlands, and large lakes in which fluvial conditions are simulated, the species breeds naturally.