！！求助：新东方蓝皮书上一题！！

angela19901003

As a baby emerges from the darkness of the womb with a rudimentary sense of vision, it would be rated about 20/500,or legally blind if it were an adult with such vision.是整句划线的。
A. 同上
B. A baby emerges from the darkness of the womb with a rudimentary sense of vision that would be rated about 20/500,or legally blind as an adult.
C. As a baby emerges from the darkness of the womb, its rudimentary sense of vision would be rated about 20/500;qualifying it to be legally blind if an adult.
D. A baby emerges from the darkness of the womb with a rudimentary sense of vision that would be rated about 20/500; an adult with such vision would be deemed legally blind.
E. As a baby emerges from the darkness of the womb, its rudimentary sense of vision,which would deemed legally blind for an adult, would be rated about 20/500.
答案是D 这题考点是什么呀？还有It 和 That的指代也不是很明白~~~请教下大家

angela19901003

亲爱的战友们帮帮忙呀~~~~

jin8673

blind 只能拿来修饰人，不能拿来修饰视力
似乎凭这一条就够了……其他的我也看的眼花

tuscan

第一眼先排除了AS的选线，然后看到D有良好的平行结构，就是他了

angela19901003

谢谢啦~~~