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If z1 and z2 are any two complex numbers...

If `z_1` and `z_2` are any two complex numbers,then which of the following is not true

A

a)`|z_1+z_2|le|z_1|+|z_2|`

B

b)`|z_1-z_2|le|z_1|+|z_2|`

C

c)`|z_1-z_2|ge|z_1|-|z_2|`

D

d)`|z_1|-|z_2|ge|z_1-z_2|`

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