I believe this is stating not about the physical arrows, but his skill set. So therefore I think it's option 2 "<span>Oedipus was highly skilled in many things"</span><span />
The difference between the split ring commutator in a DC motor and the slips rings in an AC generator can be tricky. The split ring makes changes in the rotation every so often. A slip ring just stays in place and is only used as a connector. So a slip ring is for DC, whereas the split ring is used for AC.