Answer:b) binge eating disorder
Explanation:
Binge eating disorder (BED) is a mental based eating disorder in which a person eat large meals in a very short period of time and they seem to be unable to control when they need to stop. It affects anyone irrespective of age or gender or race.
Eventhough they eat this much but they still understand that is wrong and they are ashamed of it such that they may eat privately. It is different from bulimia due to the fact that a person doesn't use purging after a binge. A person may feel guilt and disgusted by their action but still find it difficult to stop.