<em>Answer:</em>
<em>b. dissociative amnesia</em>
<em>Explanation:</em>
<em><u>Dissociative amnesia,</u></em><em> in psychology, is considered as one of the different types of dissociative disorder that generally involves an individual's incapability to recall different important and personal information that wouldn't be lost with a simple forgetting. However, dissociative amnesia is generally caused by stress or trauma that a person goes by in his or her life. Therefore, the further diagnosis of a person dealing with it is done based on the other related causes.</em>
<em><u>Symptoms: </u></em><em>Self-harm, memory loss, depersonalization, etc.</em>
<em><u>As per the question, Hector is displaying dissociative amnesia.</u></em>
