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let S(n) denote the sum of the cubes of...

let `S_(n)` denote the sum of the cubes of the first n natureal numbers and `S_(n)` denote the sum of the fisrt n natural numbers , then `sum_(r=1)^(n)(S_(r))/(S_(4))` equals to

A

`(n(n+1)(n+2))/6`

B

`(n(n+1))/2`

C

`(n^2 + 3n+2)/2`

D

none of these

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