For each sense (vision, hearing, touch, taste and smell), there is a possible display modality for information to be perceived by a human operator. Vision and hearing are by far the two most used for receiving information. Which of the following conditions is most likely to suggest that an auditory form of display is appropriate?
A. message deals with spatial references
B. no immediate action is necessary
C. message is short and simple
D. message needs to be referred to later
Answer: C