至于说选项不能攻击前提,首先要知道前提是什么:And many tulu plants are sold before they are 24 weeks old. 发生在现在。
选项D是指政府要保证tulu plants not be sold before they are 30 weeks old. 这是指对未来的规划,没有攻击前提:当前tuluplants are sold before they are 24 weeks old,反而是基于这个前提,才要政府去改变未来这个现状。
攻击前提的做法应该是这样:直接否定说Government finds out that many tulu plants are not sold before they are 24 weeks old。