Karie read the following definition of the term scientific method: “the series of steps that scientists use to answer questions and solve problems” choose one of the answers below. a. yes, affect scientific method is always the most efficient way to test a hypothesize b. no, scientists only follow a fixed scientific method if their investigation does not validate their hypothesis. c. yes, and investigation is not valid unless it follows a fix scientific method. d. no, most investigations cannot be performed using a fixed procedure of steps.