Answer: C) Dark, concentrated urine; confusion; decreased blood pressure; and increased heart rated.
Step-by-step explanation:
Older adult patients usually suffer from dehydration frequently since they have decreased oral intake of food and liquids. Clinically it manifests as dark-colored concentrated urine or less urine output, decreased blood pressure (since water from plasma is distributed through the body), increased heart rate to compensate for the lack of volume and confusion.