What kind of the text is the passage

A．Our thoughts do not always concentrate on what the speaker is saying.
B．Our own ideas influence our understanding of the speaker.
C．Our interest influences our understanding of the speaker.
D．We are not good at communication with others.

A．People generally understand about 50 percent of what they hear.
B．We often spend much more time in judging the speaker than in trying to understand
what he or she is saying.
C．It helps us to understand if we think faster than most people speak.
D．There are four steps in listening: hearing, interpreting, evaluating and responding.