A．To provide information that might reveal the company ethics. 
B．To study the ethical aspect of consumers while shopping. 
C．To do research on ethical consumers' behavior and values. 
D．To give consumers useful information on quality of products. 

A．An unexpected event that happens. 
B．Your understanding of an event. 
C．The things that happen in our lives. 
D．The mentioning of the word itself. 

A．When we are tired. 
B．When we cannot look at flowers. 
C．When we cannot change our lives. 
D．When we are doing exercises.