The more fruits and vegetables we eat ,___chances

The more fruits and vegetables we eat ,___chancesThe more fruits and vegetables we eat ,___chances of getting cancer we have .
A Little B less C the less D the least.答案是C the less 。请问为什么是C呢？l为什么其它三个不行？

The more fruits and vegetables we eat ,___chancesThe more fruits and vegetables we eat ,___chances of getting cancer we have .
这里考核的考点是 the+比较级，the+比较级。这个固定句型
The more you practise, the better you will speak english.
你练得越多，你英语就会讲得越好。
The more I read the book，the more I liked it．
这本书我越看越喜欢。

多吃水果蔬菜

the more, the more结构，越……，越……

固定用法 the +比较级，the +比较级 意思是 "越……越……"

你好，因为句首是"The more"是比较级，后面也要用比较级，因为后面是意思是得癌症的机会比较小，所以用 the less。 希望能采纳，谢谢