Which of the Following Statements Is True

Multiple Choice

Which of the following statements is true?
I. Small differences in rates of economic growth can lead to large differences in levels of potential output over time.
II. From the perspective of the rule of 72, small differences in rates of economic growth between two countries will not significantly affect their respective standards of living.
III. Countries that have higher population growth rates are likely to see higher economic growth rates because increases in population lead to increases in the size of the labor force.

A) I and III
B) II and III
C) I only
D) II only
E) III only