Both speakers most likely agree with this. Babson says people routinely tip for services, and we can reasonably assume that tipping is customary in at least some of those cases. Cortez says people only tip when it’s customary, and it’s fair to assume this is sometimes routine.

Like (C), neither speaker expresses this opinion. Their discussion is about what implications tipping culture would have for this model of charging for articles online, but they never talk about how this compares to countries where tipping isn’t customary.

Like (B), neither speaker talks about this. The point at issue is whether social customs around tipping would truly support such a practice. Cultures without those social customs are just never discussed.

Babson thinks that this is true but Cortez thinks it’s false: this is the point of disagreement. Babson uses tipping practices as support for the likely success of this new idea. Cortez, however, concludes that tipping practices are a “bad sign” for this idea.

Both speakers agree with this. Babson calls this idea “novel,” and Cortez talks about how most people do not currently engage in this method of paying for articles.