Electronic devices are bad for your eyes. Their radiation is very harmful

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Electronic devices are bad for your eyes. Their radiation is very harmful.

Electronic devices that their radiation is very harmful are bad for your eyes.

Electronic devices which their radiation is very harmful are bad for your eyes.

Electronic devices, whose radiation is very harmful, are bad for your eyes.

Electronic devices, which are bad for your eyes, their radiation is very harmful.

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Đáp án: C

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