Which sentence from the excerpt from the article "Millennials. . . So Happy Together" best supports the idea that co-working spaces result in positive interactions?

a. In recent years, the co-working movement—along with its newer cousin, co-living—has turned into a frenzy. (paragraph 1)
b. These individuals or groups rent or pay a membership fee (monthly or daily) to work in a shared space with others. (paragraph 3)
c. Today’s co-working spaces give everyone the daily opportunity to socialize and collaborate. (paragraph 6)
d. In many ways, co-living and co-working environments operate in loco parentis. (paragraph 8)