大全-16-11. Advertisement: The world’s best coffee beans come from Colombia. The more Colombian beans in a blend of coffee, the better the blend, and no company purchases more Colombian beans than Kreemo Coffee, Inc. So it only stands to reason that if you buy a can of Kreemo’s coffee, you’re buying the best blended coffee available today.

The reasoning of the argument in the advertisement is flawed because it overlooks the possibility that

(A) the equipment used by Kreemo to blend and package its coffee is no different from that used by most other coffee producers

(B) not all of Kreemo’s competitors use Colombian coffee beans in the blends of coffee they sell

(C) Kreemo sells more coffee than does any other company

(D) Kreemo’s coffee is the most expensive blended coffee available today（C）

(E) the best unblended coffee is better than the best blended coffee

能说说这道题的解题思路吗? 谢

举个例子：
其他公司买1包columbia的coffee bean，k公司买5包，其他公司卖1包blend coffee，k公司卖5包blend coffee，所以，k公司每包blend coffee中含columbia bean 与其他公司一样。

我的思路是先否定结论，找是否存在原因支持否定后的结论。