 
			 
			MCQOPTIONS
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				| 1. | Consider the relation: R (x, y) if and only if x, y>0 over the set of non-zero rational numbers,then R is _________ | 
| A. | not equivalence relation | 
| B. | an equivalence relation | 
| C. | transitive and asymmetry relation | 
| D. | reflexive and antisymmetric relation | 
| Answer» C. transitive and asymmetry relation | |