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				| 1. | A partial order P is defined on the set of natural numbers as follows. Here a/b denotes integer division. i)(0, 0) P. ii)(a, b) P if and only if a % 10 b % 10 and (a/10, b/10) P. Consider the following ordered pairs:i. (101, 22) ii. (22, 101) iii. (145, 265) iv. (0, 153) | 
| A. | nThe ordered pairs of natural numbers are contained in P are ______ and ______ | 
| B. | (145, 265) and (0, 153) | 
| C. | (22, 101) and (0, 153) | 
| D. | (101, 22) and (145, 265) | 
| E. | (101, 22) and (0, 153) | 
| Answer» E. (101, 22) and (0, 153) | |