Read the following context and choose the best option to answer the question.
Context: He had not known what the Last Order had been at the time ( he had been in Junon during the incident ) , and as such , the report caught him completely by surprise . Failure was unheard of when it came to the Turks - the organization had learned some valuable lessons with the Verd Incident and in their dealings with the original AVALANCHE rebel army , and Tseng 's leadership was pretty much flawless . That an operation had been unsuccessful under his watch was a most unpleasant surprise . Confrontation was something that Rufus was extremely good at ; feeling guilt was not .
Question: Why did the operation have a surprising outcome ?
Options: 
A. The AVALANCHE rebel army was last seen in Junon .
B. The Last Order was supposed to have resolved the Verd Incident .
C. Rufus was did not know how to let go of his guilt .
D. Tseng rarely saw defeat when leading the Turks .


D