Consider the binary relation, A = {(a,b) | b = a – 1 and a, b belong to {1, 2, 3}}. The reflexive transitive closure of A is?

{(a,b) | a > b and a, b belong to {1, 2, 3}}

{(a,b) | a >= b and a, b belong to {1, 2, 3}}

{(a,b) | a = b and a, b belong to {1, 2, 3}}

Consider the binary relation, A = {(a,b) | b = a – 1 and a, b belong

1.	Consider the binary relation, A = {(a,b) \| b = a – 1 and a, b belong to {1, 2, 3}}. The reflexive transitive closure of A is?
A.	{(a,b) \| a >= b and a, b belong to {1, 2, 3}}
B.	{(a,b) \| a > b and a, b belong to {1, 2, 3}}
C.	{(a,b) \| a <= b and a, b belong to {1, 2, 3}}
D.	{(a,b) \| a = b and a, b belong to {1, 2, 3}}
Answer» B. {(a,b) \| a > b and a, b belong to {1, 2, 3}}

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Consider the binary relation, A = {(a,b) | b = a – 1 and a, b belong to {1, 2, 3}}. The reflexive transitive closure of A is?

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