If the relation \( \mathrm{R}: \mathrm{A} \rightarrow \mathrm{B} \), where \( \mathrm{A}=\{1,2,3...

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If the relation \( \mathrm{R}: \mathrm{A} \rightarrow \mathrm{B} \), where \( \mathrm{A}=\{1,2,3,4\} \) and \( \mathrm{B} \) \( =\{1,3,5\} \) is defined by \( \mathrm{R}=\{(x, y) ; x<y, x \in A, y \in B\} \), then \( \mathrm{R}^{-1} \mathrm{oR} \) is equal to:
(A) \( \{(1,3),(1,5),(2,3),(2,5),(3,5),(4,5)\} \)
(B) \( \{(3,1),(5,1),(5,2),(5,3),(5,4)\} \)
(C) \( \{(3,3),(3,5),(5,3),(5,5)\} \)
(D) None of these.
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