Can we draw the following hypothesis from the context (see options)? 

Context:

WASHINGTON --  A newly declassified narrative of the Bush administration's advice to the CIA on harsh interrogations shows that the small group of Justice Department lawyers who wrote memos authorizing controversial interrogation techniques were operating not on their own but with direction from top administration officials, including then-Vice President Dick Cheney and national security adviser Condoleezza Rice. At the same time, the narrative suggests that then-Defense Secretary Donald H. Rumsfeld and then-Secretary of State Colin Powell were largely left out of the decision-making process.

Hypothesis: Powell was the Defense Secretary. 
Choose from: (a). Yes; (b). It's impossible to say; (c). No;
(c).