Write the Series with Summation Notation $6 + 18 + 54 + 162 + 486$

Multiple Choice

Write the series with summation notation.
- $6 + 18 + 54 + 162 + 486$

A) $\sum _ { \mathrm { i } = 1 } ^ { 5 } 3 ( 6 ) ^ { \mathrm { i } - 1 }$
B) $\sum _ { i = 1 } ^ { 5 } 6 ( 3 ) ^ { i }$
C) $\sum _ { i = 1 } ^ { 5 } 6 + 3 ( i - 1 )$
D) $\sum _ { \mathrm { i } = 1 } ^ { 5 } 6 ( 3 ) ^ { \mathrm { i } - 1 }$