What should scientists do after completing a scientific investigation?

a. write a hypothesis
b. confirm the results
c. design the procedure
d. make observations

After completing a scientific investigation the scientists should confirm the results.

So the correct answer should be B.

Hope this helps,

Davinia.

After completing a scientific investigation, the scientists should confirm the results.

Option B

Explanation:

After completing a scientific investigation, we obtain a huge number of datas. And then these datas should be plotted in graphs to analyze them. So the main work of scientist will be to observe any kind of discrepancy in the datas or some significant change in the data.

These observations or analysis of results will lead to introduction of new suggestions or hypothesis. And thus they lead to confirmation of results. Thus the scientist should confirm the results after completing a scientific investigation.