How many Jewish people were estimated to have been killed during the Holocaust?

The book 'Third Reich of Dreams' written by-

Many saw the world through Nazi eyes, and spoke their mind in Nazi language. They felt hatred and anger surge inside them when they saw someone who looked like a Jew. They marked the houses of Jews and reported suspicious neighbours. They genuinely believed Nazism would bring prosperity and improve general well-being. But not every German was a Nazi. Many organised active resistance to Nazism, braving police repression and death.

Why did many ordinary Germans remain passive and apathetic witnesses to the brutal crimes committed by the Nazis?

Match the items of column A showing the time period with the corresponding items of column B showing the treatment of Jews at the hands of Nazis and select the correct choice :

Column A                                                     Column B

$1.$ $1933 - 1939$                                    i. Ghettoisation : you have no right to live among us.

$2.$ $1940 - 1944$                                    ii. Exclusion : You have no right to live among us as citizen.

$3.$ $1941$ onwards                                     iii. Discrimination : You may exists on your own.

                                                                   iv. Annihilation : You have no right to live.