Why is high productivity important for a nation?

A$.$ Lower productivity provides the basis for a sustainable long$-$term growth in the economy.

B$.$ It provides the nation with a competitive advantage in the marketplace. Productivity increases add value to the economy while controlling inflation.

C$.$ Service jobs have higher productivity than their manufacturing counterparts do because service productivity is very difficult to measure and, consequently, difficult to improve.

D$.$ Relative higher productivity also makes it easier for foreign companies to compete.