The value of ("lim")(n rarr oo)sum(r=1)^...

The value of `("lim")_(n rarr oo)sum_(r=1)^(4n)(sqrt(n))/(sqrt(r)(3sqrt(r)+sqrt(n))^2)` is equal to

A

`(1)/(8)`

B

`(1)/(10)`

C

`(1)/(6)`

D

`(1)/(9)`

Verified by Experts

The correct Answer is:

B

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