Techniques and tools used by a researcher are:Select one:a.Research methodologyb.Research methodsc.Either of the above depending on which tools are usedd.None of the above

The correct answer is c. Either of the above depending on which tools are used.

The term "research methodology" refers to the systematic way in which research is conducted, including the theoretical analysis of the methods and principles associated with a branch of knowledge. It involves the study of the methods used in your field and the theories behind them, and it is therefore important in all stages of the research process.

On the other hand, "research methods" are the strategies, procedures and techniques used to collect and analyze data. This could include experiments, surveys, case studies, etc.

So, the tools and techniques used by a researcher could fall under either research methodology or research methods, depending on the specific tools used.