How can we promote economic growth by using single language in the world​

Economic studies have shown that fluency in a dominant language is important to economic success and increases economic efficiency. However, maintaining linguistic diversity also has value since language is also an expression of people's culture.

Researchers say multilingualism can fuel exports, increase salaries and help innovation. Multilingualism is good for the economy, researchers have found.

could you put the choices and excert up hun

the answer is b-$11,337.