 <translate> Some question: If, when the two parties of knights encounter one another after a month, exactly one knight changes from one travelling party to the other travelling party, that knight must be
Options:
(A) P
(B) Q
(C) R
(D) S
(E) T
Some stream of consciousness: <yor> Ibeere kan: Ti, nigbati awọn ẹgbẹ meji ti awọn knights pade ọkan miiran lẹhin osu kan, gangan ọkan knight ayipada lati ọkan ajo ẹgbẹ si awọn miiran ajo ẹgbẹ, ti knight gbọdọ jẹ Àwọn àyè: (A) Ì (B) Ì (C) R (D) S (E) Ì Ìmọ̀lára kan: 