Which of the following best describes an ideal scientific question? A. An ideal scientific question clearly identifies variables, is measurable, and does not just simply ask "why." B. An ideal scientific question is measurable, simply asks "why," and does not identify variables. C. An ideal scientific question does not just simply ask "why," is not measurable, and clearly identifies variables. D. An ideal scientific question does not identify variables, is not measurable, and simply asks "why."