What is the contribution of the knowledge economy to labor productivity in Argentina, Brazil, and Chile?

I- The contribution of the knowledge economy to labor productivity was important in Argentina and Brazil, but not in Chile.
II- The contribution of the knowledge economy to labor productivity was less important in Argentina and Brazil than in the United States and the European Union.
III- The contribution of the knowledge economy to labor productivity was negative in Chile.
a) Only statement I is correct.
b) Only statement II is correct.
c) Only statement III is correct.
d) Statements I and II are correct.
e) Statements II and III are correct.