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If z1, z2, z3 are complex numbers such t...

If `z_1, z_2, z_3` are complex numbers such that `abs(z_1)= abs(z_2) = abs(z_3) = abs(frac{1}{z_1}+frac{1}{z_2}+frac{1}{z_3}) = 1`, then `abs(z_1+z_2+z_3)` is

A

`A.`equal to1

B

`B.`less than 1

C

`C.`greater than 3

D

`D.`Equal to 3

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