Refer to the given figure showing three different organisms P, Q and R. Select the correct statement(s) regarding these organisms.
(i) Organism has true coelom whereas organisms P and R are pseudocoelomates.
(ii) Organisms P and R are diploblastic whereas organism is triploblastic.
(iii) Bodies of organisms P and Q are metamerically segmented.
(iv) Organism Q bears special paired locomotory appendages called parapodia however in organism R tube feet helps in locomotion.
(v) Excretion in organisms P and takes place by flame cells and nephridia respectively.