Which of the following statements regarding the Possessive case is wrong?

Which of the following statements regarding the Possessive case is wrong? Correct Answer For plural nouns ending in ‘s’, the Possessive case is formed by adding ’s to the noun

The Possessive case for plural nouns ending with ‘s’ has only the apostrophe sign. For example, ‘Girls’ school’. All the other options are correct.

Related Questions

Which of the following has an incorrect usage of the Possessive case?
Which one is possessive case?
The use of possessive case should not be confined to which of these?
pick the correctly written possessive case
Possessive case is also known as?