What does Keller identify as the danger of contextualization?
a. The danger of contextualizing is that it could discourage Christians from giving charitably to those in need.
b. The danger of contextualizing is that it could lead Christians to surrender historic, biblical doctrines for the sake of appeasing a culture that finds those doctrines offensive.
c. The danger of contextualization is that it might result in pastors delivering sermons that are too long for the attention span of most audiences.
d. The danger of contextualization is that it could end up producing greater tensions between Catholics and Protestants, when both are seeking to evangelize the same culture.