Which of these is the best reason for doing more background research after making an observation and before forming a hypothesis?

to find the answer without having to do an experiment

to prevent making the same mistakes made in a prior experiment

to fill the space in your lab report

to make your data agree with prior experiments

The answer would be the second option. The best reason for doing more background research after making an observation and before forming a hypothesis is to prevent making the same mistakes made in a prior experiment. It is to make sure that you are able to see the problems of a research and make an experimental design that will minimize the errors.