Help plz

Consider the statement S, 12 + 22 + 32 +_.+12 12 _ n(n + 1)(2n + 1) 6 Write the statement Sk. 1 OA. 12+ 22 +32 + + (k + 1)2 _ (k+ 1)(2k + 1)(2k + 2) 6 O B. 12+22+324 + (k + 1) =_ (* + 1)(k + 2)(2k + 3) 6 OC. 12 + 22 + 32 +... + (k + 1)2 _ K(k + 1)(2k + 1) 6 O D. 12+ 22 + 32 + +$2_ K(k+ 1)(2k + 1)