Answer: B) Appeal to emotion.
Explanation: there are many persuasive or rhetorical techniques used to convince the readers or the audience of a perspective or argument about a controversial topic. Three of the most used are ethos, logos and pathos, ethos is an appeal to the audience's ethics, logos is an appeal to the audience's logic and pathos is an appeal to the audience's emotions. In the given sentence the author is clearly appealing to the audience's emotions, by using the image of the blood of children.
