Which of the following phyla of animals are NOT ecdysozoan? A: Arthropoda B: Nematoda C: Gastrotricha D: Nematomorpha E: Kinorhyncha

Which of the following phyla of animals are NOT ecdysozoan? ( ) A: Arthropoda B: Nematoda C: Mollusca D: Nematomorpha E: Kinorhyncha