As experts at the Nielsen Norman Group explain， there is a risk that a low-fidelity prototype may confuse test users because .

As experts at the Nielsen Norman Group explain， there is a risk that a low-fidelity prototype may confuse test users because .
A.they will feel embarrassed for the amateurish designer
B.they expected to have a product demo， not a test
C.they may not understand what it is， or how it works
D.it may appear to be a finished product， so need need for feedback
正确答案：they may not understand what it is， or how it works