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A and B are two points on the Argand pla...

A and B are two points on the Argand plane such that the segment AB is bisected at the point (0, 0). If the point A, which is in the third quadrant has principal amplitude `theta`, then the principal amplitude of the point B is

A

`-theta`

B

`pi-theta`

C

`theta-pi`

D

`pi+theta`

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