good question:
Five animal tests concluded that irradiated food is safe for human to eat. However, these studies were found by a panel of scientists to be seriously flawed in their methodology, hence not safe for human consumption.
(A) treats a failure to prove a claim as constituting proof of the denial of that claim:
i.e. a flawed methodology is enough to prove the result of study to be incorrect. What if the methodology that the scientists deem correct also results in the conclusion that irradiated food is safe to eat?
Five animal tests concluded that irradiated food is safe for human to eat. However, these studies were found by a panel of scientists to be seriously flawed in their methodology, hence not safe for human consumption.
(A) treats a failure to prove a claim as constituting proof of the denial of that claim:
i.e. a flawed methodology is enough to prove the result of study to be incorrect. What if the methodology that the scientists deem correct also results in the conclusion that irradiated food is safe to eat?