다음 글의 밑줄 친 부분 중, 어법상 틀린 것은?

 Early witches were people ①who practiced witchcraft, using magic spells and calling upon spirits for help or to bring about change. Most witches were thought ②to be pagans doing the Devil’s work. Many, however, were simply natural healers or so-called “wise women” ③whose choice of profession was misunderstood. Witch hysteria really took hold in Europe during the mid-1400s, when many accused witches ④were confessed, often under torture, to a variety of wicked behaviors. Within a century, witch hunts were common and most of the accused were executed by burning at the stake or hanging. Single women, widows and ⑤other women on the margins of society were especially targeted.

정답 : ④ (were confessed → confessed)

원문 : History of Witches