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B
Protozoans
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C
Coelenterates
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D
Annelids
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Solution
The correct option is C Coelenterates Radial cleavage is considered as the holoblastic cleavage that is typical of deuterostomes and that is characterized by the arrangement of the blastomeres of each upper tier directly over those of the next lower tier resulting in radial symmetry around the pole to pole axis of the embryo makes a 90-degree angle. It is found in cnidaria or Coelenterata and echinoderms.