The author acknowledges the benefit of being able to connect with many people through social media, but also points out problems such as the pressure of 'being aware of others' gazes,' the 'dilution of relationships,' and the creation of 'psychological distance.' This suggests that while the quantity of connections has expanded, the quality has declined, leading to the risk of psychological isolation. Therefore, the correct answer is 'That while connections have expanded quantitatively, relationships have become superficial and can create psychological isolation in some cases.' The other options are inappropriate as they either state only the positive aspects, which is contrary to the author's concerns, or point out things that differ from the content of the passage.