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C(1) and C(2) are two circle which touch...

`C_(1) and C_(2)` are two circle which touch internally at point P. Two lines PCA and PDB meet circle `C_(1)` at C and D and circle `C_(2)` at A and B respectively. If `angleBDC=120^(@)` then what is value of `angleABP`. (If CD||AB)

A

`60^(@)`

B

`80^(@)`

C

`100^(@)`

D

`120^(@)`

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