Match Each Sum with the Corresponding Summation Notation $\sum _ { k = 1 } ^ { 6 } k ^ { 2 }$

Multiple Choice

Match each sum with the corresponding summation notation.
- $\sum _ { k = 1 } ^ { 6 } k ^ { 2 }$

A) $16 + 25 + 36 + 49 + 64$
B) $25 + 36 + 49 + 64 + 81$
C) $1 + 4 + 9 + 16 + 25 + 36$