请教 GMATPrep-54 ：whereas VS unlike

Unlike using spices for cooking, in medicinal usage they are taken in large quantities in order to treat particular maladies.

(A) Unlike using spices for cooking, in medicinal usage they are taken

(B) Unlike spices that are used in cooking, in using spices for medicine, they are taken

(C) Unlike cooking with spices, taking spices for medicinal use is done

(D) In cooking, small quantities of spices are used, whereas in medicinal usage spices are taken (D)

(E) In cooking, the usage of spices is in small quantities, whereas in medicinal usage they are taken

为什么这里C不对？用unlike 和whereas表比较有什么区别？谢谢各位指教。

顶一下，同样的问题

关于你说的Ｃ为什么不对？从语法上来讲c好象没有问题，但在逻辑意思上是不平行或对等的，即比较概念不对等，句子的意思是说在烹饪和治疗上不同的，注意是烹饪和治疗比较,而不是烹饪和取香料比，既cooking和taking spices 比，事实上，无论是烹饪还是治疗都会有取香料这个动作的．属于比较对象不对等问题．