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A, B, C are three point on a circle. The...

A, B, C are three point on a circle. The tangent at A meets BC produced at T,`angleBTA=40^(@),angleCAT=44^(@)` . The angle subtended by BC at the centre of the circle is -

A

`84^@`

B

`92^@`

C

`96^@`

D

`104^@`

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