Which two electromagnetic waves are useful for diagnosing illnesses?

x-rays and radio waves
microwaves and gamma rays
gamma rays and x-rays
radio waves and ultraviolet waves

Astudent is trying to create a table that compares hypotheses, theories, and laws. hypothesis theory law do scientific researchers formulate it? yes yes yes does it explain why things happen? yes yes no yes yes yes is it used to make predictions? no yes yes which of the following questions would most likely fill the blank in the table? is it an intelligent guess? is it newly formulated? is it based on observations? has it been proved?