Select from options: Continue writing the next sentence.

How to do research
Determine a good reason why this research needs to be done.
Clarify who it will help. The answer may be based on your academic, personal or professional needs, but it should be your motivation for doing a thorough job.

Choose your answer from:
(1). Someone who finds your work to be fascinating will often work out a plan with you as a test partner. Workplace research should not be something you take lightly and be able to stand by.;
(2). To determine whether a research effort is worthwhile, consider how successful your research is, how in-depth or if your research has an impact on the work that must be done in the future. Try to choose the person who will be doing the work that helps you achieve your goals.;
(3). Define the problem or question at hand. You should boil the question down to basic terms, time periods and disciplines.;
(4). State whether you are engaged in this research. Any related sources will probably benefit or hinder your research.;
Answer:
(3).