In which phase of Eye Movement Desensitization and Reprocessing (EMDR) does the client activate the memory by visualizing the trauma, identify associated thoughts, and establish a baseline for emotional and physical reaction to the trauma?

Choice A reason: Installation is the phase where positive cognitions are strengthened after desensitization, not for initial trauma activation. Choice B reason: Desensitization is the phase where the client processes the trauma through bilateral stimulation to reduce distress, after assessment has been done. Choice C reason: This is correct. The assessment phase involves identifying the target memory, activating it through visualization, noting associated thoughts and emotions, and establishing a baseline for emotional and physical reactions to guide the subsequent processing phases. Choice D reason: Closure occurs at the end of the session to ensure the client is stable and safe, not for memory activation or baseline assessment.