Concept:A computer programmer requires strong reasoning and logical problem-solving skills.
Explanation:Important qualities of a computer programmer include a passion for computers, a desire for efficiency, a love of learning new technologies, and being a good problem solver.
Among the options, excellent analytical thinking is the most essential programmer quality.
Teaching ability, friendliness, and punctuality are not as specific to the core work of programming.
Programming constantly requires analysing problems, breaking them into steps, and developing logical solutions.
Therefore, the correct choice is Excellent analytical thinking.
Answer:D. Excellent analytical thinking