A patient has had part of his right thumb amputated in an industrial accident. Coworkers have retrieved the thumb and wrapped it in a towel. The EMT demonstrates appropriate handling of the amputated part when he:

A) Places the thumb in ice water
B) Keeps the thumb warm during transport
C) Places the thumb in sterile saline
D) Wraps it in a dry sterile dressing

D) Wraps it in a dry sterile dressing