My girlfriend recently has got herself into a bit of a dilemma. She recently got a job at a grocery store in Canada where she has now worked 2 shifts (1 for training, 1 regular shift). At the same time, she was offered a job at a clothing store.
She would much prefer this job as it is closer to her home, interests her more, and is less physically demanding. She has only worked at the grocery store for one week.
What is the most professional way to quit the grocery job after such a short period of time?