Hi shoot4greatness ,

Well take the argument very logically like a maths equation . Now lets evaluate wht the argument says :-

--- Ppl suffer alergic reactn to sulf , commonly added to wine [that means wine contains sulf the allergic matter ]

---- Several wine makers do not add sulf to wine ,so ppl who are allergic could drink tht wine .

The conclusion is in bold .

The conclusion says tht wine makers doesnt add sulf hence people who are allergic and like drinking wine can drink that wine .

But what if sulf are naturally occuring in the wine ?? This fact will rip apart the conclusion . The fact that can hamper your conclusion should be the assumption .

Hope that helps .