Answer: A. The National Security Argument
Explanation: Bertrand is most concerned on the security of his country in all rounds. He is against relying on other continents for survival on a particular sphere.
Effective communication is important because it helps to prevent and deal with conflicts. If one person wants something, and if they don't communicate it to the others, it might lead to a situation in which the others refuse then this without knowing, which would lead to conflicts.
So, in short: communication serves to prevent and lessen conflicts.
In America it began in 1619 and ended with the 13th amendment in 1863 but this was only finalized in the constitution in 1865.
D. Building extra space in a factory to improve production
