Why did approximately one out of every six prisoners from Bergen-Belsen concentration camp die within weeks of liberation?

They were in Belsen supposedly to recover and then return to their original camps and resume work, but many of them died in Belsen of disease, starvation, exhaustion and lack of medical attention. In August 1944, a new section was created and this became the so-called "women's camp".

Ithink the answer should be a.