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p points are chosen on each of the three coplanar lines. The maximum number of triangles formed with vertices at these points is

A

`p^(3)+3p^(2)`

B

`(1)/(2)(p^(3)+p)`

C

`(p^(3))/(2)(5p-3)`

D

`p^(2)(4p-3)`

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The correct Answer is:
D
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