The noun form of "curative" is ______.

Whicn vitamin can reduce the curative effect of levodopa() A: vitamin A B: vitamin B1 C: vitamin B2 D: vitamin B6 E: vitamin B12

The article is _________. A: a vivid description of the various parts of an orange B: a nostalgic recollection of the author's longing for an orange as a child C: an objective account of the curative effect oranges have on cold D: a truthful explanation of how oranges found their way to the author's home town