 
<translate> Wasu tambaya: Idan, a lokacin da biyu ƙungiyoyi na Knights haɗu da juna bayan wata daya, daidai daya Knight canje-canje daga daya tafiya ƙungiya zuwa wani tafiya ƙungiya, cewa Knight dole ne Zaɓuɓɓuka: (A) P (B) Q (C) R (D) S (E) T Wani rafi na sani: <eng> 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: 