Her reasons for leaving were 'obvious'. = It's 'obvious' why she left.
You are stating 'the obvious'. Tell me something I don't already know.
Her doctor immediately noticed the 'obvious' signs of the disease.
(..) The job's done, and the bitch is dead. James... ...did you ever ask yourself why you weren't killed that night? Isn't it obvious? She made a deal to spare your life in exchange for the money. I'm sure she hoped they would let her live. But she must have known (..)2006 Casino Royale