In order to carry out the experiment, two brave British physicists walked into the oven of a bakery and asked people to gradually increase the temperature of the oven until the air in the oven dried up. When people stand in a high-temperature oven, the human body mainly dissipates heat through evaporation when the outside temperature is high. Under the condition of high temperature and dryness, the evaporation of water is accelerated, and heat is continuously absorbed from the body, thus ensuring that the body temperature will not be too high. Therefore, even if you stay for several hours under the above conditions, you will only lose more water and lose your physique, and you will not be excessively hurt, so ACD is correct and B is wrong.

So choose B.