Write the Series with Summation Notation $35 + 7 + \frac { 7 } { 5 } + \frac { 7 } { 25 }$

Multiple Choice

Write the series with summation notation.
- $35 + 7 + \frac { 7 } { 5 } + \frac { 7 } { 25 }$

A) $\sum _ { i = 1 } ^ { 4 } \frac { 7 } { 5 i }$
B) $\sum _ { \mathrm { i } = 1 } ^ { 4 } \frac { 7 } { 5 ^ { \mathrm { i } } }$
C) $\sum _ { \mathrm { i } = 1 } ^ { 4 } 7 ( 5 ) ^ { - \mathrm { i } }$
D) $\sum _ { i = 1 } ^ { 4 } \frac { 7 } { 5 ^ { i - 2 } }$