Five sealed urns, labelled P, Q, R, S, and T, each contain the same (non-zero) number of balls. The following statements are attached to the urns.
| Urn P | This urn contains one or four balls. |
|---|---|
| Urn Q | This urn contains two or four balls. |
| Urn R | This urn contains more than two balls and fewer than five balls. |
| Urn S | This urn contains one or two balls. |
| Urn T | This urn contains fewer than three balls. |
Exactly one of the urns has a true statement attached to it.
Which urn is it?
AUrn P
BUrn Q
CUrn R
DUrn S
EUrn T