Answer:
The correct answer would be : the scientific method.
Step-by-step explanation:
The study of world around each and every organism is known as science. Science or the world around us can only study by the scientific method. Scientific method includes the observation of the world and forming question on the basis of these observation which is followed by investigations and experiments.
The observation and possible answer of the question can be check accurately that was formed with the help of data carried out in investigation.
Thus, the correct answer would be : the scientific method.