I think that its D. <span>Titania's refusal to allow Oberon to use her book of spells.</span>
Answer: it ended in speculation, but only 13 witches were hanged, if you are talking about the Salem witch trials
Explanation:
I don’t know what C.E.R. is, but I think the FBI should use lie detectors. I think their are pros and cons to using and not using them. But, overall I think it would really help them catch criminals.