In the context of dramatic texts, "mood" refers to the feelings or emotions that the text evokes in the reader or audience. It can be influenced by various elements such as the setting, character interactions, language, and tone of the dialogue.
So, from your options, the correct definition of mood in this context is: feelings the text evokes in the reader.
While the setting (where and when the text takes place) can contribute to the mood, and sensory descriptions can enhance it, mood itself specifically relates to the emotional response elicited by the text.