No behavior should be considered ethical if it is motivated by
a. selfish concerns
b. unselfish concerns
c. abstract concerns
d. concrete concerns

No behavior should be considered ethical if it is motivated by selfish concerns. The correct option among all the options that are given in the question is option "a". It is a fact of life that any kind of selfish thinking can never lead to a good or ethical work. Unless a person is able to take a selfless decision, it can no way be considered as ethically correct decision.

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.