When connecting a switch to another switch using Ethernet ports, what pinouts should be used?

When connecting a switch to another switch using Ethernet ports, what pinouts should be used?
A . 1->3, 2->6, 3->1, 6->2
B . 1->1, 2->2, 3->3, 6->6
C . 1->4, 2->5, 4->1, 5->2
D . 1->5, 2->4, 4->2, 5->1
E . 1->6, 2->3, 3->2, 6->1

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Answer: A