Estimate How Many Pennies Would You Have to Stack to Reach

Multiple Choice

Estimate how many pennies would you have to stack to reach from the floor to an average 8-ft ceiling.

A) 2 × 10³
B) 2 × 10²
C) 2 × 10⁴
D) 2 × 10⁵
E) 2 x 10⁶