The correct answer to this question is B, A hypothesis. This guest can be tested, and it is used to predict a study's outcome. An explanation includes two variables, including an independent, which is what the researcher changes, and a dependent, which is what the researcher measures. There are many types of hypotheses in psychology.
Alternative explanations predict there is a relationship between the two variables that are being studied. This hypothesis predicts the link is not due to chance and that the variables are significant. Other types include nondirectional, directional, and null. Suggestions can be supported or rejected, but they can never be proven correct.