Final answer:
The task that should not be assigned to the Unlicensed Assistive Personnel (UAP) is to feed the 69-year-old client diagnosed with Parkinson's disease who is having difficulty swallowing.
Step-by-step explanation:
The task that should not be assigned to the Unlicensed Assistive Personnel (UAP) is to feed the 69-year-old client diagnosed with Parkinson's disease who is having difficulty swallowing. Since this client is experiencing difficulty swallowing, there is a risk of aspiration and choking. This task requires specialized knowledge and training, so it should be performed by a nurse or a licensed healthcare professional.