Answer:
D) technical skills.
Explanation:
Technical skills are the skills we need to perform some specific task. Most of use consider technical skills to be those needed in engineering, mechanics, mathematics, computer science, etc. For example, using certain tools or equipment, installing a certain machine, computer programming, etc.
But technical skills cover more than that, for example, you need technical skill in finance for quantitative analysis and financial forecasts, doctors need technical skills to handle many diagnostic machines, etc.