A glass was filled with 10 ounces of water, and 0.01 ounce of the water evaporated each day during a 20-day period. What percent of the original amount of water evaporated during this period?	Choose the correct choice from the following answers
A) 0.002 % B) 0.02 % C) 0.2 % D) 2 % E) 20 %

Rationale: "in 20 days 20 * 0.01 = 0.2 ounces of water evaporated , which is 0.2 / 10 ∗ 100 = 2 of the original amount of water . answer : d ."
Answer: D