After the war, colonial possessions of the defeated Central Powers

a were placed under European control
b became independent nations
c were exempted from the war guilt clause
d joined the League of Nations

It is A.) were placed under European control

Explanation:

the pogroms became known as kristallnacht, the "night of shattered glass," for the shattered glass from the store windows that littered the streets. the morning after the pogroms 30,000 german jewish men were arrested for the "crime" of being jewish and sent to concentration camps, where hundreds of them perished.