Let X = {1, 2, 3, 4, 5, 6, 7, 8, 9}, y = {0, 2, 5, 8, 12, 13, 17, 19}, and Z = {z|z is an even integer less than 19}. Find X ∩ Y ∩ Z.

A. {2, 4, 6, 8}
B. {all whole number < 20}
C. {2, 8}
D. {2, 4, 6}