If a, b and c satisfy the equation x^(3)...

If a, b and c satisfy the equation `x^(3)-3x^(2) + 2x+1 =0` then what is the value of `(1)/(a)+(1)/(b)+(1)/(c )` ?

A

`-1/2`

B

2

C

`-2`

D

`1/2`

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