Final answer:
Geometric optics is applicable in the analysis of a microscope's image because the microscope magnifies microscopic objects to a macroscopic scale, allowing light's interaction with the object to be described using geometric optics.
Step-by-step explanation:
Geometric optics describes the interaction of light as if it travels in straight lines, which is a good approximation when dealing with objects much larger than the wavelength of light. A microscope, although used to view very small objects, creates an enlarged, macroscopic image that geometric optics can effectively analyze. When light interacts with the components of the microscope, such as its lenses and the sample being viewed (which appears macroscopic once magnified), its behavior can be accurately described using principles of geometric optics.
Therefore, the correct answer to why it is suitable to use geometric optics to analyze a microscope's image is: b) Microscopic objects behave like macroscopic objects in terms of light interaction when magnified by a microscope, which allows geometric optics to be applicable.