In common usage, vegetable oil may refer exclusively to vegetable fats which are liquid at room temperature. Vegetable oils are usually edible; non-edible oils derived mainly from petroleum are termed mineral oils. Hope it answered your question :D
Answer:
In one of her interviews, she said she was glad to help the families hide because she was extremely concerned after seeing what was happening to the Jews in Amsterdam. Every day, she saw trucks loaded with Jews heading to the railway station, route to Nazi concentration camps. She felt extremely bad seeing all these people suffer and wanted to offer some help.
