The relation $R$ defined on the set of natural numbers as $\{(a, b) : a$ differs from $b$ by $3\}$, is given by
The relation $R$ defined on the set of natural numbers as $\{(a, b) : a$ differs from $b$ by $3\}$, is given by
- A
$\{(1, 4, (2, 5), (3, 6),.....\}$
- B
$\{(4, 1), (5, 2), (6, 3),.....\}$
- C
$\{(1, 3), (2, 6), (3, 9),..\}$
- D
None of these
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