Concept:An asylum is another term for a mental institution, so the correct word must describe the people confined there.
Explanation:Inmates is the word used for people confined in a prison or a mental hospital.
The people in an asylum are under institutional care, not ordinary residents.
Occupants only means people occupying a place.
Residents are people who live in a neighbourhood or building.
Tenants are people who pay rent to occupy property.
Only
inmates fits the meaning of a person kept in a mental institution.
So the correct choice is option A.
Answer:A. inmates