An older client is admitted with a change in mental status, but no other motor deficits are observed. The caregiver tells the nurse that the client seemed okay yesterday but confused today. How should the nurse respond?

"The client most likely suffered a stroke."

"It is rare for people to have such a sudden change in mental status, no matter what the age."

"It is common for older clients to have mental status changes when they have an infection."

"It is a normal part of the aging process."