【評論主題】【題組】35 What is the author’s opinion about kohlrabi?(A)It is rare and expensive. (B)It should be wide

【評論內容】

第一句" It's worth checking out." 以及第三句" It is still patiently waiting to be discovered in this country."

可見作者認為kohlrabi很值得被探索、被人所知

所以答案是B It should be widely introduced. （他應該被廣為介紹）