Answer:
Option D
Explanation:
Option D is the best way of encoding ,as not only the tape plays Sacramento but Sacramento is the capital of California. It will also sound right in Darcy ears that Sacramento is the capital California ,as she plays it every night ,there is no way the brain won't capture it ,as every time she hears the word Sacramento, the thought that it is the capital of California will always ring in her heart. Yes option D is the best way of encoding such an event.