Final answer:
The truthfulness of the statement about PlusPartners membership requiring separate enrollment and additional fees depends on the specific membership terms of the service in question.
Step-by-step explanation:
The statement 'PlusPartners membership does require a separate enrollment.
Additional assessment and transaction fees apply.' is True or False depending on the specific membership terms and conditions of the service being referred to.
If the service being referred to does stipulate that a separate enrollment is necessary for PlusPartners membership and that there are extra fees for assessment and transactions, then the statement is True.
On the other hand, if the service does not require separate enrollment and additional fees, then the statement would be False.