Final answer:
The point that is not consistent with the chapter's discussion of world religions is that there is no variation in the growth rate of different groups of Christians.
Step-by-step explanation:
The correct answer is c. There is no variation in the growth rate of different groups of Christians. The chapter's discussion of world religions states that Christianity is the world's largest major religion, with about 2.2 billion adherents. It also mentions that Islam is growing at a faster rate than Christianity and is projected to have the most adherents in the world by 2020. The chapter also acknowledges the existence of many other religions and variations of the primary religions outlined. Lastly, it highlights the variation in religiosity among people who practice a faith, with some parts of the world being more deeply religious than others. Therefore, based on the chapter's discussion, the statement that there is no variation in the growth rate of different groups of Christians is not consistent.