Answer and Explanation:
Language creates communication and communication is able to create bridges between societies in all parts of the world, allowing connections to be made between all peoples. This creates a global unity, connects different cultures and allows for the joint thinking of all the inhabitants of the planet who can act together to solve global problems, to share their privileges and encourage positive elements across the planet. In short, language and communication provide connections and that builds a global and unified society.
The sentence that best summarizes the passage is B) Two French brothers built the first hot air balloon from paper, warming the air inside with smoke so it would rise.