Communication is the sending of information or news from one person to another. If human b

eings could not communicate with one another, each person would have to learn everything for himself. Although animals as well as men can communicate, so far as we know, they can express only the simple emotions like pain, joy, fear, hunger, anger and love. Some animals have a more advanced form. of language using sounds, and others use a wide range of sounds and face movements, but we still have much to learn about these animal languages.

Speech is the most important means of communication between people. But it is not the only one. Nor is it the oldest. We use facial expressions, gestures, and hand movements to express our feelings and to send signals to other people. Animals use this "body language" a great deal. The sign language used by deaf people is an example of communication without speech, while blind people communicate largely through touch and hearing.

According to the passage, what would happen to us without communication？

A．We should learn everything for ourselves.

B．We would become unable to speak.

C．We couldn't live happily.

D．We might have to do everything by ourselves.