 
 <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: <ibo> Ụfọdụ ajụjụ: Ọ bụrụ na, mgbe abụọ ọzọ nke knights ezute onye ọzọ mgbe a ọnwa, kpọmkwem otu knight mgbanwe site na otu njem ọzọ njem, na knight ga- Nhọrọ: (A) P (B) Q (C) R (D) S (E) T Mmetụta ụfọdụ: 