 
			 
			MCQOPTIONS
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				| 1. | Find all students who have taken all courses offered in the Biology department. The expressions that matches this sentence is : | 
| A. | t r (Q(t)) | 
| B. | t r (Q(t)) | 
| C. | t r (Q(t)) | 
| D. | ~ t r (Q(t)) | 
| Answer» C. t r (Q(t)) | |