Read the statement about characteristic features of class-Monoplacophora. I. Body is flat, bilat...

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Read the statement about characteristic features of class-Monoplacophora.
I. Body is flat, bilaterally symmetrical and oval-shaped.
II. The animals bear nephridia and internal segmentation like annelids.
III. This is the only class among molluscs which includes monoecious species.
IV. The body is enclosed in a mantle which secretes a dome-shaped outer shell.
Choose the correct option.
(A) I, II and IV
(B) I and II
(C) II and IV
(D) I and III
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