If the equation (x^2)/3-4x+13=sin(a/x) h...

If the equation `(x^2)/3-4x+13=sin(a/x)` has a solution then a is equal to

A

`(2n+1)pi/2`

B

`3(4n+1)pi/2`

C

`3(1+4n)pi`

D

None of these

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