Answer :

Answer:

The benefit is obvious, Everyone would be able to communicate with each other with little to no confusion because they are all speaking the same language.

The challenge would be that all of the careers that are built around translator's, International trade, and people speaking different language's in general, Would most likely be inflated because everybody is now either unqualified or even more qualified. ( this changes if the common language's is replacing the current or in addition to.)

Explanation: