... Option B) Demonstrate that most of your games have been decided out of the opening, and that the evaluation didn't shift multiple times after the opening ...
Is that the only way that opening knowledge can be helpful? What about sometimes managing "not to ... fall into ... lines that result in difficult positions"?
Only opening book I have ever bought was Mayhem in the Morra, which was difficult enough for me at 1700 at the time and I only read part of it. It would be a semester of college to get through for a 1000 level player.