What Does the "Active Mode" in Hilgard's Study Refer To

What does the "active mode" in Hilgard's study refer to?

A) The preconscious state of mind that creates pleasant memories
B) The conscious state of mind that registers and stores information in memory without being aware that the information is being stored
C) The conscious short term or working memory that can only hold information up to 20 seconds
D) The conscious state of mind that includes a person's conscious plans, desires, voluntary actions