To be able to be a good problem solver, an individual need to showcase certain skills and behaviors. You should be able to define your problem well, thus ensuring that the solutions that you come up with are well-targeted and suitable to the actual problem at hand. Observing your thoughts and emotions would also come in handy to ensure that you are not influenced by your own biased when solving the problem.
However, (C) procrastinating is a behavior that you should strive to avoid since it would not aid you in problem-solving.