$400 \left[ \frac { 1.06 ^ { n } - 1 } { 0.07 } \right]$

Multiple Choice

$400 \left[ \frac { 1.06 ^ { n } - 1 } { 0.07 } \right]$
for $n = 221$

A) 2,109,853,543
B) 223,643,904
C) 2,236,439,042
D) 210,985,354