According to the text, human beings have used communication a) for business and not for exchanging thinking. b) for everything else except busine...

According to the text, human beings have used communication


a) for business and not for exchanging thinking.
b) for everything else except business or exchanging thinking.
c) for exchanging thinking instead of business.
d) not only for business but also for exchanging thinking.
e) neither for exchanging thinking nor for business.