The beginning of every workout should start with
C) A warm-up.
The three key types of relationship are friends, family, and romantic partners. All the other choices namely, role models, acquaintances, and neighbors are not part of the key types of relationship.
1: being social, 2: going to work/going to school, 3: studying, 4: hanging out with friends, 5: getting a good amount of sleep, 6: just taking care of themselves in general. Hope this helped!