How did the Germans react to the Berlin Wall?

An air-lift began for supplies to reach East Germany.

Many Germans began to move into East Germany.

Many called it a "Wall of Shame."

Many Western politicians together with many Germans and ordinary people in the West, as well as in the East, called this wall the wall of shame. It was called like this because an actual wall was built in the middle of a very important and historically significant city to divide it into two halves.

The correct answer for your case is C - many called it a 'wall of shame'.