Final answer:
In dissociative identity disorder, the secondary personality often provides advice and performs tasks that the host personality is unable to handle.
Step-by-step explanation:
In dissociative identity disorder (DID), it is typically the secondary personality or what are sometimes called 'alter personalities' that emerge to handle specific tasks or stressful situations that the host is unable to manage. These alters may provide advice, perform behaviors, or handle situations the host feels incapable of dealing with. Although the terminology can vary, the key distinction is that these secondary or alter personalities serve a protective or compensatory role within the context of DID.