Answer:
C. by helping to hide the Franks, a Jewish family in Amsterdam in the Netherlands
Step-by-step explanation:
Miep Gies was born in Vienna, but because of illness and impoverishment, she was sent to the Netherlands for care and fortified with her foster family. She wedded a Dutchman and worked for Otto Frank, winding up close with his family. She, alongside a few other people, concealed the Franks in a secret annex to the office for over two years before they were discovered by the Gestapo. She protected Anne Frank's journals and later returned them to Otto Frank, the sole survivor of his family.