Final answer:
Relationships with family, friends, and colleagues commonly involve self-exploration, comfort in difficult times, and effective communication.
Step-by-step explanation:
Relationships with family, friends, and colleagues have several things in common. Firstly, they all provide us with a way to explore our self-concept, as interacting with others helps us understand who we are in relation to them. Secondly, they all give us comfort in times of hardship, as we can rely on the support and empathy of our loved ones. Lastly, they require us to be effective communicators, as good communication is essential for maintaining healthy relationships.