The correct answer is D. Pedro’s and Marley’s books will be published in October
Step-by-step explanation:
The apostrophe (’) is a punctuation mark that is used for different purposes included marking the omission of letters in contractions and the possession of something. In the case of using the apostrophe for creating possessives. According to grammar in singular nouns or nouns that indicate one object, person, animal or idea it is necessary in most cases to add the apostrophe (’) at the end of the word followed by an "s". Additionally, if there is a joint possession which means an object or idea belongs to two different individuals only the final name will become possessive, but if there is individual ownership which means each individual owns separately the same object each of the names needs to be added the apostrophe and the "s". Considering the question is about showing an individual ownership which means each Pedro and Marley had different books both of them need to show the possession, therefore the correct answer is D. "Pedro’s and Marley’s books will be published in October" as this answer shows the individual possessions of the book and adds in a grammatically correct way the apostrophe.