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B
Sucking and siphoning
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C
Biting and chewing
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D
Sponging
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Solution
The correct option is C Biting and chewing The mouth parts of cockroach are biting and chewing type. These are used in searching and ingestion of food. The mouth parts include labrum, mandibles, first pair of maxillae, labium or second pair of maxillae and hypopharynx.