Which recording medium results in the least recorded resolution?

Video tape recording results in the least recorded resolution among the choices presented. This is primarily because video tape systems typically use analog technology, which does not capture fine details as effectively as digital methods or high-quality film formats.

In comparison, spot films utilizing a spot film camera or conventional cassettes generally yield higher resolution outputs, as they are designed specifically for radiographic imaging and can capture finer details. Video disc recordings, although they were also based on analog technology, are often better in terms of resolution than video tapes, due to different recording methods that can enhance image clarity.

This inherently means that while video tape recording is practical for real-time viewing and may offer convenience, it lacks the resolution required for detailed diagnostic evaluation, making it the least effective option in terms of recorded resolution.