Select the most appropriate option to rectify the given sentence. We are responsible of ensuring compliance with safety regulations.

1. We are responsible to ensuring compliance with safety regulations.
2. We are responsible in ensuring compliance with safety regulations.
3. We are responsible by ensuring compliance with safety regulations.
4. We are responsible for ensuring compliance with safety regulations. Comprehension: Read the following passage carefully and answer the questions that follow. In an age dominated by instant messaging and rapid-fire emails, the art of handwritten letter writing is slowly fading into obscurity. Once a cherished form of personal and thoughtful communication, letters carried the weight of emotion, deliberate word choice, and the quiet rhythm of reflection. A handwritten note could evoke intimacy and nostalgia, standing as a testament to the time and effort invested by the sender. Unlike fleeting digital messages, letters had a sense of permanence—they could be re-read, preserved, and even treasured across generations. This tangible form of expression also cultivated patience, both in writing and receiving. Today, while efficiency has overtaken elegance, the decline of letter writing represents more than just technological advancement—it signals a subtle shift in how we value depth, time, and emotional investment. In losing the habit of writing letters, are we also losing something of ourselves?