Answer:
a hypothesis.
Step-by-step explanation:
The student is considering a hypothesis.
A hypothesis is based on prior knowledge and observation. The statement of the student is something that can be supported or refuted through experimentation or observation for this reason it is a hypothesis. To know the falsifiability and testability the student have to derive predictions from the hypotheses about the results of future experiments, and then performing those experiments to see whether they support the predictions.