Answer:
Step-by-step explanation:
There is a whole book devoted to the heroes who helped during the second world war. Search for Sir Martin Gilbert. I think he estimates there were 10000 people and families who hid Jews during the war. It also includes 2 dogs.
They certainly didn't want to be heroes. In fact, most of them didn't like admitting that they had done it. Anti Semitism didn't evaporate after WWII. It is alive and well even today.
She didn't particularly want to fight the Nazis. Her loyalty was to the Frank family.
The Franks didn't force her to do anything. They were just grateful she did it.
She did it because it was the right thing to do.