Christine believes that dreaming is simply subjective awareness of the brain's internally generated signals during sleep. It starts with automatic activation of brain stem circuits that then arouse more sophisticated brain areas. Christine's views are most consistent with which dream theory?

Activation-synthesis theory

Explanation:

Activation-synthesis theory is the theory that explains to dreams to be caused by the biological operations of the brain.

The circuits of nerve cells in the brain get activated during Rapid Eye Movement (REM) sleep. This increases the activity in the parts of the brain dealing with emotions, sensations, and memories. The brain tries to interpret this activity. In doing so the interpretations manifests in the form of dreams.

Hence, Christine views are most consistent with the Activation-synthesis theory of dreaming.