A transparent sheet of film containing multiple rows of microimages is characteristic of which type of microfilm?

The correct choice is microfiche because it specifically refers to a flat, transparent sheet that contains multiple rows of microimages arranged in a grid format. Microfiche is designed to allow easy access and viewing through the use of a microfiche reader, which magnifies the images for clarity. This format is particularly advantageous for storing numerous documents in a compact space, allowing for efficient storage and retrieval of information.

The distinctions among the options help clarify why microfiche stands out. Aperture microfilm often refers to film strips with precisely cut openings to expose specific sections of the film, rather than a flat sheet. Jacket microfilm refers to film housed within a protective jacket, thus not being free-standing like microfiche. Roll or reel microfilm is typically presented on a spool, allowing for continuous feed through a reader, but it doesn’t have the same manageable, flat structure that microfiche offers. Thus, microfiche is the ideal form that matches the description given in the question.