求解释OG13 SC第九题

winnielxx

In 1979 lack of rain reduced India's rice production to about 41 million tons,nearly 25 percent less than those of the 1978 harvest.
A. less than those of the 1978 harvest
B. less than the 1978 harvest
C. less than 1978
D. fewer than 1978
E. fewer than that of India's 1978 harvest
求比较ABC选项。。。OG的解释我看明白了。。。可是对于这三个选项的区别还是很迷糊。。。我当时选的C。。。求帮助扭转思路。。。
OG上说A选项的those指代tons of the 1978 harvest。。。可我怎么总觉得指代的是rice production。。。还有既然从A简化到了B。。。为嘛B不能简化到C呢。。。求解释。。。

wintertrain

A选项，因为用的是those，所以只能指代前面的复数名词，只能指代 tons of xx，如果a选项改为 less than that of 1978就对了

wintertrain

c选项绝对不应该选，这个对比的是1979的rice production 和1978的rice production， 不能用1979的rice production 对比1978这个年份

建议lz仔细阅读一下曼哈顿语法

winnielxx

懂了~~！万分感谢大侠指点~~