Final answer:
Effective communication is identified as the key component in developing relationships, both in personal proximity and professional collaborations. The text highlights its fundamental importance for successful interaction and social organization.
Step-by-step explanation:
According to the text, which factor is a key component in developing relationships? It is clear from the provided context and examples that effective communication plays a fundamental role. The text suggests proximity as a significant factor for forming friendships and romantic relationships, indicating that frequent contact provides opportunities for interaction. Furthermore, it highlights the importance of being able to express wishes and ask questions, which are essential aspects of communication. In addition, when considering the communication with a manager, the focus on collaboration underscores the necessity of effective communication as a tool for building successful professional relationships.
In the context of group leadership, for instance, an authoritarian style (answer a) would exhibit a communication pattern that is top-down. Meanwhile, not being able to communicate well can impede social organization and success in both personal and professional aspects of life.