Express the Sum Using Summation Notation $\sum _ { k = 1 } ^ { 8 } k ^ { 2 }$

Multiple Choice

Express the sum using summation notation.
-2 + 4 + 6 + ... + 16

A)
$\sum _ { k = 1 } ^ { 8 } k ^ { 2 }$
B)
$\sum _ { k = 0 } ^ { 8 } 2 k$
C)
$\sum _ { k = 1 } ^ { 8 } 2 k ^ { 2 }$
D)
$\sum _ { k = 1 } ^ { 8 } 2 k$