Which of the following represents the correct combination of Characteristics without any exception?

Options

A. `{:( Chondrichthyes, Class),("Mouth ventral ,gills without operculum,skin with placoid scales ,persistent notochord","

Chondrichthyes "):}`
B. `{:( Cyclostomata, Class),("Sucking&circular, mouth jaws absent integument withoutscales ,pairedappendages "," Cyclostomata"):}`
C. `{:( Aves, Class),("Body covered feathers,skin moist, glandular forelimbs form wings ,
lungs with air sacs ","Aves "):}`
D. `{:( Mammalia, ),("Mammary gland , hair on body , pinnae twopairs of Limbs ",

""):}`

Answer

A