Respuesta :
They might research the recent changes in the atmosphere of the town. Such as new factories.
Answer:
A phenomenological research.
Explanation:
In this case, we have an unusual phenomenon and don't what's the cause. So, a phenomenological research will consider all natural variables that could've involved in the unusual high level of cancer.
This method of research they need to apply it with a exploratory scope, because they are studying something unique and attached to the specific geographical space.