Read the following statements and pick out the correct option. 

(a) Coelenterates, ctenophores, and echinoderms are radially symmetrical.

(b) Platyhelminthes includes acoelomates with incomplete gut.

(c) The cells and tissues of earthworm are directly bathed in blood.

(d) The ectoderm is present as scattered pouches in between the mesoderm and endoderm in Aschelminthes.

• A

  Only (a) and (b) are correct

• B

  Only (c) and (d) are correct

• C

  (a), (b) and (c) are correct

• D

  (a), (b) and (d) are correct