GWD28-Q37

37. GWD28-Q37:

Roughly one-half of the world’s population, including virtually all of East and Southeast Asia also, is wholly dependent on rice to be its staple food.

A.      including virtually all of East and Southeast Asia also, is wholly dependent on rice to be

B.       including virtually all of East and Southeast Asia, is wholly dependent on rice as

C.      virtually all of East and Southeast Asia as well, wholly dependent on rice as
        缺少动词

D.      which includes virtually all of East and Southeast Asia’s, being wholly dependent on rice as定从的就近导致逻辑错误？

E.       which includes virtually all of East and Southeast Asia also, is wholly dependent on rice to be

选对了，但是想问问including 和 which includes 在用法上的区别

望大家指点：）

up

虽然我也选对了,但是A不是很确定:

1. also在后面有什么问题?

2. dependent on sth. to be 或者dependent on sth. as 是考点吗? 都可以吗?

which和it都不能指代前面整句话.

这里which是指代的Roughly one-half of the world’s population,所以不行.

即便which只是指代world's population,定从的表达也不如分词好.

语法需要选出最优答案而不只是正确答案.