If ainR and the equation -3(x-[x])^(2)+2...

If `ainR` and the equation `-3(x-[x])^(2)+2(x-[x])+a^(2)=0`, (where [x] denotes the greatest integer `le`x) has no integral solution, then all possible values of a lie in the interval :

A

`(-1,0)uu(0,1)`

B

(1,2)

C

(-2,-1)

D

(-infty,-2) uu(2,infty)`

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The correct Answer is:

A

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