will give brainliest Karie read the following definition of the term scientific method: "the series of steps that scientists use to answer questions and solve problems." Do scientists always follow one fixed scientific method during real-life investigations? A. No, scientists only follow a fixed scientific method if their investigation does not validate their hypothesis. B. No, most investigations cannot be performed using a fixed procedure of steps. C. Yes, an investigation is not valid unless it follows a fixed scientific method. D. Yes, a fixed scientific method is always the most efficient way to test a hypothesis.