Answer: B) to create conditions that will ensure the success of their experiments
Step-by-step explanation:
A scientific investigation is a scientific inquiry which is conducted in a systematic manner by implementation of a scientific methodology so as to answer questions related to the cause of the natural phenomena or event.
To conduct a scientific experiment an experimenter has to mimic the conditions as that of a natural world so as to determine the cause of the phenomena. This will ensure the success of the experiment.