9. Mr. and Mrs. Zeta want to name their child, Little Zeta. If the first letters of Little Zeta's given name, middle name, and last name must be in alphabetical order and the letters cannot be repeated, how many possibilities are there? $\qquad$
(A)276, (B) 300, (C)552, (D) 600,
(E) 15600
$B$