A family asks why their father is attending activity groups at the long-term care facility. The son states, "My father worked hard all of his life. He just needs some rest at this point." Which is the appropriate nursing reply?

"The groups are optional. Only clients at high functioning levels would benefit."

"If your father doesn't go to these activity groups, he will be at high risk for developing dementia."

"The groups benefit your father by providing social interaction, sensory stimulation, and reality orientation."

"I'm glad we discussed this. We'll excuse him from the activity groups."