Answer:
The answer is A. Deciding which database to use, choosing qualitative or quantitative methods, designing sampling plan
Step-by-step explanation:
When designing your primary research plan there are three major decisions to make and they include; Deciding which database to use, choosing qualitative or quantitative methods, designing sampling plan.
A database is an organized collection of data which is stored in a computer and database varies from relational database management system, document store, key value store wide column store and search engine. However you have to search the strengths and weaknesses of each and know which would be beneficial for your primary research given that information is very key and vital in research.
You also have to decide if your research requires the use of either qualitative or quantitative methods. Qualitative research method identifies abstract concepts through the use of methods such as focus groups, interviews, diary studies. While quantitative research method collects numerical data and is based on statistical analysis. Quantitative research method includes surveys.
Designing a sampling plan is also important because you will need to know which measurements should be taken , what should be the focus group in the population, who should take the samples, what the sample size should be and so on.