Express the Sum Using Summation Notation $$4 ^ { 2 } + 8 ^ { 3 } + 12 ^ { 4 } + \ldots + 32 ^ { 9 }$$

Multiple Choice

Express the sum using summation notation.
- $$4 ^ { 2 } + 8 ^ { 3 } + 12 ^ { 4 } + \ldots + 32 ^ { 9 }$$

A) $\sum _ { k = 1 } ^ { 8 } 4 k ^ { 2 k - 1 }$
B) $\sum _ { k = 1 } ^ { 8 } ( 4 k ) ^ { k }$
C) $\sum _ { k = 1 } ^ { 8 } 2 ( k - 1 ) ^ { k + 1 }$
D) $\sum _ { k = 1 } ^ { 8 } ( 4 k ) ^ { k + 1 }$