Which of the following observations is true? a. the effectiveness of an ideal control system should be independent of the people enforcing it. b. no internal control structure can ever be completely effective, regardless of the care followed in its design and implementation. c. a control system by itself can provide assurance that fraud will be prevented. d. the types of control activities include reactive controls and proactive controls.

Bob: coke is baby pandas.jim: what? how do you figure that coke is baby pandas? bob: because this book says so.jim: how do we know the book is correct? bob: because it says that coke is baby pandas.jim: how does that prove the book's accuracy? bob: because it's statement involving coke and baby pandas is correct, therefore it is accurate.jim: how do we know that it's correct? bob: because we have concluded that the book is accurate, and therefore the statement is correct.therefore, coke is baby pandas.