I believe the answer may be D. In taking action, one must not worry about success or failure.
Based on the given passage above as quoted from President Barack Obama, the principle of bureaucracy that the quotation demonstrates is the hierarchical authority. The government is divided into an hierarchy. Those decisions that can easily be done are made in the lower levels. Once it becomes more difficult, this is passed up to the next higher levels. Hope this answer helps.
The Black Sea and Aegean Sea (Hopefully this is correct!)
