In a Research Study Using the Zaltman Metaphor Elicitation Technique,participants

In a research study using the Zaltman Metaphor Elicitation Technique,participants: 

A)  suggest alternative design options for a particular product. 
B)  fill out surveys about their consumption habits. 
C)  use the product in a controlled environment, while researchers observe them. 
D)  visually represent their experiences with a product or service with a collection of photographs or pictures.