Which term best describes a group of total communities which live in a common area, speak a common dialect, and follow a common culture?

QFQiQFVi_rx7ZhlQtDHoQu
E6 Applied Sociology for Nurses TK Indrani p. 79-81
E6 Parks TextBook of Preventive & Social Medicine part 2 — Subpart A (pp 1-232 of 464) p. 219-221
Practise the full RUHS, Jaipur, PB B.Sc Nursing Entrance-2019
Attempt every question from this paper in a timed mock, then review the full solution for each one.