members members members area | WordReference Forums Members' is correct as member's would mean that there is only one member Also, re the correctness or otherwise of your third option, you might want to read this recent thread
Family members help each other. - WordReference Forums Could "members" be omitted and just say "Family help each other" instead? This sounds pretty unlikely to me in American English Perhaps another member can tell you whether it sounds normal in British English
members present vs present members | WordReference Forums I’m wondering how far the grammatical principle of word order seen in “present” stretches “Present members” means those who have the membership of the group whereas “members present” means people present at a particular meeting The posterior adjective seems to me to counter the English
its members vs the members - WordReference Forums So to say "its" members is true of the students, and certainly true of the tutors (not every college has a nuclear physicist on the staff, for example) But if you use "their" it means you're talking about all the colleges together
People is are ; La gente es son | WordReference Forums People when it means "pueblo" or "cultura" is like team, usually singular in AmE but, especially in BrE, plural when referring to members of the group People when it means "gente" or "personas" is always plural