Do these Past Continuous sentences refer to an action interrupted by another action (A), a temporary situation (B), or an action in progress at a precise time in the past (C)?

1. □ At that time, I was staying with my aunt.
2. □ My brother was doing his fitness training at four thirty yesterday.
3. □ Katie was snowboarding very fast when she crashed.
4. □ The team was travelling to the competition when they heard the news.
5. □ I was working as a guest coach that summer.
6. □ At this time last week I was talking to the doctor about my injury.