Based on your reading of Sarah Jackson's article about hashtag activism, what are "networked counterpublics"? a. tools for building up opportunities for disadvantaged groups to be upwardly mobile by sharing information about mentoring and professional opportunities b. online business communities that follow trending topics to stay in touch with customers and take advantage of opportunities to profit from current events O c. mediated network spaces where marginalized people make their experiences visible and advocate for recognition of their needs O d. revolutionary activities that take place in private discussion groups that seek to maintain exclusive boundaries of access