A.
B ecause b y learning a second language, and perhaps even more, we can understand each other better and deal with each other with more empathy and consideration.
B.
Because m ost countries today, because of increasing urbanization, international commerce, tourism, business travel, and modern technology have begun to embrace the concept of a society that is multicultural. And evidently, a globalized multicultural society would naturally be multilingual.
C.
Leaning a second language makes you have the ability to communicate with the others.
D.
B ecause l earning a second language not only challenges your mind, but also enriches your soul, so to speak.