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Which of the following statements (i – v) are incorrect ?

  1. Circulatory system in arthropods is of closed type.

  2. Parapodia in annelids helps in swimming.

  3. Phylum mollusca is the second largest animal phylum.

  4. Aschelminthes are dioecious.

A. (i) only

B. (iii) only

C. (i) and (iii)

D. (iii) and (iv)

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