An Online News Story Suggests a Connection Between a Chemical

Multiple Choice

An online news story suggests a connection between a chemical dye found in foods and the development of mouth ulcers.As a budding young scientist,you refer to the journal in which the original research was published to see whether or not the research followed the scientific method.You are looking for which of the following four requirements?

A) design an experiment,state the hypothesis,collect data from a previous experiment,then test your hypothesis
B) determine problem,develop a hypothesis,collect data from observations,and test your hypothesis
C) identify the problem,create a theory,publish your findings,and finally test your hypothesis
D) both A and C