19. Bridget, Casey, and Hannah are discussing their scores on a math test. Hannah showed her score to Bridget and Casey, but they didn't show their scores to anyone. Casey said, "I am not the lowest score in the class." Then Bridget added, "I am not the highest score in the class." The order of the three girls' test scores from highest to lowest is ( ).
(A) Hannah Casey Bridget
(B) Hannah Bridget Casey
(C) Casey Bridget Hannah
(D) Casey Hannah Bridget
(E) Bridget Casey Hannah
19. D.

From the problem, we know that Casey's statement indicates Casey's score is higher than Hannah's. Bridget's statement indicates her score is lower than Hannah's. Therefore, the order of scores from highest to lowest is Casey, Hannah, Bridget.