Read the following passage:
At a time when social media dominates communication, it's easy to forget the profound impact of traditional letter writing. Letters once served not just as messages but as tangible connections between people. The ink-stained pages carried the writer's emotions, their careful choice of words reflecting their intent. In contrast, brief texts and instant messages often lack the depth and nuance necessary for conveying complex feelings, leading to misinterpretations and lost sentiments. This shift raises a critical question: what has been lost in our preference for immediacy over intimacy?
Which of the following options, if added to the passage, would best enhance the author's exploration of the differences between these two forms of communication?