The answer is B. Morals.
While feelings and ideas are aspects of human behavior that can also be described as <em>intelligent communications</em> for their content and their ability to convey information to others, morals are the only capable of imprinting a sense of liability in our actions, giving us a sense of duty towards keeping what we think, what we feel and what we do honest to our moral standards.
There language and religon
I think it is "all of the above".