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Let z1 in C,|z1-3|=1/2,z2 in C, |z2+|z2-...

Let `z_1 in C,|z_1-3|=1/2,z_2 in C, |z_2+|z_2-1||=|z_2-|z_2+1||`, then least value of `|z_1-z_2|` is:

A

`0`

B

`1/2`

C

`3/2`

D

`5/2`

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