The deadliest death camp in the Holocaust was Auschwitz II-Birkenau, near Brzezinka village in Poland.
The Chinese people of the time believed that the country was working against the best interest of the people and in the interest of the spreading Western and Japanese powers. This is why a group of people started the boxer rebellion. This was a nationalist movement that wanted China to be independent and work in the interest of China and Chinese people and not in the interest of foreigners.
The answer is a. look it up if youre not sure