MCQOPTIONS
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				| 1. | 
                                    Study the bar chart and answer the questions.The difference in the sales of cellular phones for the years 1997 and 1999 is ? | 
                            
| A. | 500 units | 
| B. | 1,000 units | 
| C. | 5,000 units | 
| D. | 18,000 units | 
| Answer» E. | |