Fish having lungs as labyrinths?

Correct option is D

Gouramis are a group of freshwater fish belonging to the family Osphronemidae, which includes various species like the Blue Gourami, Pearl Gourami, and others. Gouramis possess a specialized respiratory structure known as a labyrinth organ. The labyrinth organ allows them to breathe air directly from the atmosphere in addition to extracting oxygen from water through their gills.This adaptation is particularly useful for gouramis in oxygendeficient or stagnant water conditions, such as ponds and swamps.