Context: I arrived at school , thinking it was a beautiful day . When I entered the classroom I say everybody studying for a test , a History test , I apparently had forgotten . I did not study for the test because when I got home the day before I had my Chinesse class and this time it was more dynamical and entertaining . One period before the test our good friend Maria explained both Revolutions to us , I think I did good despite the incident .

Question: What might I have done after the test since Maria helped me ?
Options:
0. I might not have thanked Maria but promised to pay back the favor .
1. I might have thanked Maria but did n't promise to pay back the favor .
2. I might not have thanked Maria and did n't promise to pay back the favor .
3. I might have thanked Maria and promised to pay back the favor .
Answer: 3