The last one is the answer
The correct answer is (b.) men's. The men's shouts filled the dark night. If you are referring to many male persons, you may use men. You need not any usage of s with men since men is already in a plural form which makes it wrong.
d. giving the reader enough detail to form a picture in his or her mind.
The key to description is to give the reader enough detail or information in order to form or create a vivid picture of the thing, place or scenario in his or her mind. The important features, the characteristics of the subject being talked about must be clearly described an emphasize in order for a description to be a success. It is only when the listener or the reader be able to draw the scenario out of the descriptions given will we say that the description is delivered well.