MCQOPTIONS
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				| 1. | 
                                    Even though the retinal image of an object may change drastically, the object appearsunchanged. This is the principle underlying | 
                            
| A. | perceptual closure. | 
| B. | shape constancy. | 
| C. | ambiguous stimuli. | 
| D. | retinal disparity. | 
| Answer» C. ambiguous stimuli. | |