Tardigrades, Also Called Waterbears, Are Very Small Bilaterally Symmetric Organisms

Tardigrades, also called waterbears, are very small bilaterally symmetric organisms with paired appendages along their bodies and a reduced coelom. Knowing that tardigrades molt their surface cuticle, what is the MOST likely interpretation of their appendages?

A) They are homologous with the limbs of tetrapods.
B) They are homologous with the paired appendages of polychaete worms.
C) They are homologous with the paired appendages of arthropods.
D) They are a unique feature, not closely similar to appendages in any other animal.