Which of the Following Is an Example of a Personal/casual

Which of the following is an example of a personal/casual zone interaction?

A) Instead of sitting at the kitchen table, Jules prefers to sit on the couch beside her roommate Deb while they eat dinner and watch TV.
B) Lesley enjoys stopping by her neighborhood café every morning to pick up a latte and chat with the barista.
C) After his dad's recent death, Charlie never missing the opportunity to give his mom a loving hug.
D) Daniel runs on the same bikeway everyday and never misses the chance to offer a quick wave "hello" to other runners.