What is the best transformation of "She managed to finish the project." using "success"?

Using "success" in the transformation of the original sentence introduces a focus on the manner in which she accomplished the task. The phrase "She successfully managed to finish the project" directly conveys that she not only finished the project but also emphasizes that her success was due to her effective management of that process.

The term "successfully" serves as an adverb here, modifying "managed," which succinctly captures both the achievement and the manner in which it was achieved. This choice neatly encapsulates the essence of the original statement while incorporating the specified keyword, effectively demonstrating a successful completion of the project through management.

In contrast, the other options either miss the direct relation to success by focusing more on the outcome rather than the manner or introduce unnecessary complications in phrasing that don't convey the same clarity or intent as the selected answer. This makes the chosen transformation the most coherent and precise reflection of the original idea.