Using both verbal and nonverbal cues, people find it most difficult to detect

This would definitely be FALSE. It is even easier if someone would use both verbal and nonverbal cues. Verbal cues includes the use of words in communication. Nonverbal cues include actions or gestures. Most of the time, nonverbal cues validate the message of the verbal cues given. For example, when someone says she is sad. You will notice in her nonverbal cues that she is frowning.