What is true about using apostrophe?

which is grammatically correct?





concept: parents of the students are kind.





1- students' parents are kind.


2- students parents are kind.


3- student's parents are kind.(unlikely to be true)





I've heard that using apostrophe after plural nouns is used only for writing historical names such as ';Jesus' friends';; otherwise using it for other nouns are considered dated language. so it seems be to writing the phrase ';students' parents'; is false. what is your opinion? i want to write it in modern English, not in dated English.





Thanks for your helps.What is true about using apostrophe?
1 is correct.


';Student's parents'; isn't correct because it implies only one student.


';Students' parents'; is the only correct answer. It is not dated English.





I think you are confusing the rule of s' versus s's. As in ';Jesus' friends'; versus ';Jesus's friends';. The latter isn't really used anymore, it looks very ugly and awkward, although it still is technically correct.What is true about using apostrophe?
One is correct. It means that the parents of the students are kind. If it was the parents of one student who were kind, it would be ';THE student's parents are kind';.
students' parents are kind...





Jesus' friends is not because of ';historical'; or ';dated language'; but because Jesus is a name ending with s, just like Jones or James...