Context: At the parking structure Viv got a lot of the new dollar coins after paying for parking . They 're very shiny ! We kept M company while she paid and then we off to the vehicles . I was riding with Viv and we were going to pick up Joe at Vienna Metro .

Question: What may be the reason for her getting dollar coins back ?
Options:
0. Because she over paid in cash .
1. Because she was able to get cashback from her account .
2. Because she specifically asked for them .
3. Because she paid with her credit card .
Answer: 0