Which steps should the Admin perform to diagnose the Error?

An Admin has made numerous changes to a Template Content record over the course of a day, and now finds that the “Failed to Load PDF” error message appears when the output document is generated.

Which steps should the Admin perform to diagnose the Error?
A . Edit the template content and view as source, then modify HTML until clicking Check Syntax results in “No Errors.”
B . Download the template content via Dataloader and analyze the HTML source, modify and replace HTML until the template renders.
C . Copy and paste the content into a text editor and run a syntax checker, modify and replace HTML until the template renders.
D . Clone the record, reference the clone in place of the original record, then delete elements (such as table rows) until the template renders.

Answer: D