Which equation represents the partial sum of the geometric series? the sum from n is equal to 1 to 4 of 125
A
125 plus 25 plus 5 plus 1B
1 over 125 plus 1 fifth plus 5 plus 125C
25 plus 5 plus 1 plus 1 fifthD
1 plus 1 fifth plus 1 over 25 plus 1 over 125