If all the roots of z^3 + az^3 + bz + c ...

If all the roots of `z^3 + az^3 + bz + c = 0` are of unit modulus, then

A

`|a|le3`

B

`|b|gt3`

C

`|c|le3`

D

None of these

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The correct Answer is:

A

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