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B
Mollusk
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C
Arthropods
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D
Annelids
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Solution
The correct option is A Chordates Deuterostomes are a group of animals including those of the phyla Echinodermata, Chordata, Chaetognatha and Brachiopoda, who areclassified together on the basis of embryological development and molecular criteria.
Members of the phylum Chordata are bilaterally symmetric, deuterostome coelomates, and the vertebrate chordates display segmentation.