Both men's plans and women's plans are the correct examples of the plural possessive case, whereas <em>it's place </em>and <em>stone's throw </em>are not. The option <em>it's place </em>isn't even possessive, because <em>it's </em>stands for <em>it is, </em>and the word <em>its, </em>without the apostrophe would be possessive. The option <em>stone's throw </em>is not plural.
Answer:
It means to do and keep in secret so it would be (B)Go behind someone's back
Explanation:
Nothing is underlined in your sentence, but the sentence sounds like it is set in the present.
B. present
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