P. Q. R. S. $\mathrm{T}$ and $\mathrm{U}$ are seated around a circular table. $\mathrm{R}$ is seated two places to the right of $\mathrm{Q} . \mathrm{P}$ is seated three places to the left of $\mathrm{R} . \mathrm{S}$ is seated opposite $\mathrm{U}$. If $\mathrm{P}$ and $\mathrm{U}$ now switch seats, which of the following must necessarily be true?
(A) $\mathrm{P}$ is immediately to the right of $\mathrm{R}$
(B) $\mathrm{T}$ is immediately to the left of $\mathrm{P}$
(C) $\mathrm{T}$ is immediately to the left of $\mathrm{P}$ or $\mathrm{P}$ is immediately to the right of $\mathrm{Q}$
(D) $U$ is immediately to the right of $R$ or $P$ is immediately to the left of $T$
P. Q. R. S. $\mathrm{T}$ and $\mathrm{U}$ are seated around a circular table. $\mathrm{R}$ is seated two places to the right of $\mathrm{Q} . \mathrm{P}$ is seated three places to the left of $\mathrm{R} . \mathrm{S}$ is seated opposite $\mathrm{U}$. If $\mathrm{P}$ and $\mathrm{U}$ now switch seats, which of the following must necessarily be true?
(A) $\mathrm{P}$ is immediately to the right of $\mathrm{R}$
(B) $\mathrm{T}$ is immediately to the left of $\mathrm{P}$
(C) $\mathrm{T}$ is immediately to the left of $\mathrm{P}$ or $\mathrm{P}$ is immediately to the right of $\mathrm{Q}$
(D) $U$ is immediately to the right of $R$ or $P$ is immediately to the left of $T$
$\mathrm{T}$ is immediately to the left of $\mathrm{P}$ or $\mathrm{P}$ is immediately to the right of $\mathrm{Q}$