Which one of the followig phyla is correctlly matched with its two general characteristics

Options

A. `{:("Notochord " ,"Notochord at some"),("","stage and separate"),("","anal and urinary open"),("","ings to the outside"):}`
B. `{:("Echinodermata " ,"Pentameous radial"),("","symmetry and mostly"),("","internal fertilisation"):}`
C. `{:("Mollusca " ,"Normally oviparous"),("","and development"),("","through a trochophore"),("","or veliger larva"):}`
D. `{:("Arthropoda" ,"Body divided into head, "),("","thorax and respiration"),("","by tracheae"):}`

Answer

C