The statement that best describes Martin Luther’s attitudes toward Jews during the span of his religious career is: He initially believed that Jews should be treated with kindness but later adopted antisemitic attitudes.
Early in his reformative work, Luther expressed a belief that Jews could be converted to Christianity and criticized the mistreatment of Jews by Christians. However, later in his life, particularly after he realized that his attempts to convert Jews were unsuccessful, he became increasingly vehement in his criticism and adopted strongly antisemitic viewpoints. This shift is evident in some of his writings, where he expressed hostility towards Jewish beliefs and practices.