Solution
✅ Correct Option: 2
Option 1 doesn't make an appropriate pair, as I and III are not contrasting statements. "But" can only connect two contrasting statements.
Option 2 makes an appropriate pair. "But" connects II and IV appropriately. II talks about how Doordarshan telecast is ethnocentric i.e. evaluates just from one's culture, but IV talks about how it must go beyond mere reportage of facts and capture the story between the lines. Perfect contrast.
Option 3 and 4's pairs aren't even related, both in both options are about different topics.