If |(a^2,b^2,c^2),((a+lambda)^2,(b+lambd...

If `|(a^2,b^2,c^2),((a+lambda)^2,(b+lambda)^2,(c+lambda)^2),((a-lambda)^2,(b-lamda)^2,(c-lambda)^2)|=klambda|(a^2,b^2,c^2),(a,b,c),(1,1,1)|lambda!=0` then `k` is equal to :

`4 lambda abc`

`- 4 lambda^(2)`

`4 lambda^(2)`

`- 4 lambda abc`

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