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B
Echinoidea
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C
Asteroidea
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D
Holothuroidea
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Solution
The correct option is C Asteroidea Star fishes are the marine invertebrates. They belong to the phylum Echinodermata and the class Asteroidea. Their body is composed of a central disc. They have at least five arms. Some of the species have a smooth body while certain species have spiny bodies. The organism has tube feet which help the starfish to move underwater by creating hydraulic pressure.