A wildlife facility has three enclosures for birds awaiting release. Nine birds weighing less than 3 pounds are kept in enclosure X. Fourteen birds weighing at least 3 pounds but no more than 9 pounds are kept in enclosure Y. Ten birds weighing more than 9 pounds are in enclosure Z. Which of the following could be the median of the weights, in pounds, of these 33 birds?
2.5
5
9.5
12
