Read the given statements characterizing certain types of animals. Select the option which correctly exemplifies each of these types.
(i) Animal having external gills
(ii) Animal having internal gills
(iii) Animal showing tracheal respiration
(iv) Animal revealing buccopharyngeal respiration

Options

A. `{:("(i)",(ii),(iii),(iv)),("Prawn","Arenicola","Unio",Fish):}`
B. `{:("(i)",(ii),(iii),(iv)),("Necturus","Unio","Prawn","Frog):}`
C. `{:("(i)",(ii),(iii),(iv)),("Pila","Arenicola","Unio","Toad"):}`
D. `{:("(i)",(ii),(iii),(iv)),("Necturus","Pila","Milipede","Toad"):}`

Answer

D

Explanation

Necturus (Mud a puppy, Amphinia) possesses three pairs of external gills, Pila (Apple snail, Mollusca), respires by means of gills. Pila (Apple snail, Mollusca) respires by means of gills (ctenidium) in water and by a pulmonary sac on land. Millipedes (Arthropoda) respire by tracheae (tracheal respiration) and toads (Amphibia) exhibit buccopharyngeal respiration.