2. The economy of Macro Island is described by the following data:

Labor’s share of income is one-third.

Output grows by 8 percent per year.

The capital stock grows by 9 percent per year.

The labor force grows by 3 percent per year.

Given these data, we know that total factor productivity grows by percent per year.

a. 1

b. 2

c. 3

d. 4