The right answer is "A. By conducting experiments, which are like tests "
The experiments are tests carried out by scientists to prove or deny the hypotheses they had about a particular topic. Thus, the results of the research will be made based on the result of these experiments.
Understanding more about both the company you hope to work for and its competitors will help you appear competent and well prepared for the interview. It will also assist you in preparing good questions to ask of the interviewer if you are given the chance to do so.
