Passage Summary: Sheila argues that colorizing old movies is fine because it's like turning a book into a movie—it's a new version that doesn't change the original one bit.

Conclusion: Colorizing a black-and-white film is an acceptable practice that does not harm the original work's integrity.

Reasoning: Just as a movie based on a book is a separate entity that doesn't diminish the book's value, a colorized film is a new, distinct work that should be judged independently of the original.

Analysis: Sheila's method is centered on the use of an analogy to justify a controversial practice. She attempts to neutralize the 'integrity' argument by pointing to a similar, widely accepted scenario where a derivative work exists alongside an original without conflict. When evaluating the answer choices, look for descriptions of 'argument by analogy' or 'drawing a parallel.' It’s a classic 'if you’re okay with X, you should be okay with Y' maneuver that relies on the two situations being functionally identical in the relevant ways.