请问本题的AB选项错在哪里？

Question

28. Do you know ________
A. how many populations there are in the world
B. how much population there is in the world
C. how many the population of the world is
D. what the population of the world is

Answer 1

这题应该选D，A和B都是错的。在对人口的数量进行提问时，只能说What's the population，而不能用how many和how much修饰，因为population是一个集合名词，相当于the number of people，所以在提问时要使用疑问词what。