GMAT Critical Reasoning (CR) | Re: Ostrich meat, which is low in fat and cholesterol, is becoming popular

Ostrich meat, which is low in fat and cholesterol, is becoming popular in the United States among dieters and those concerned with health. However, ostriches are an endangered species. If the popularity of ostrich meat continues to grow at the present rate, ostriches will inevitably become extinct.

Which of the following, if true, most seriously weakens the argument above?

(A) Ostrich meat is not any healthier than lean beef, which is available everywhere and less expensive.
(B) Ostrich meat