Chhose the correct example of the singular possessive case

1) women's club
2) audiences' reaction
3) who's job
4) king' right

I choose #4, because women is already plural and so is audiences, and it should be whose job.

5 answers

Check your question again. There isn't a correct answer among those ( unless you made a mistake in typing.)
Exact question - Which one of the following is a correct example of the singular possessive case?
1) women's club
2) audiences' reation
3) who's job
4) king's right
4) Kings rights
"king's right" is correct -- the only singular possessive in the list.
Number 4.