The way I interpreted this, everything except the last sentence is context. Looking at that last sentence in isolation, the author gives an opinion (conclusion) and follows it with a premise. The premise is a description of Roehmer's motives, and the conclusion is disconnected from that premise. Fr...

The first premise: "no active volcanoes have been identified on Venus" is something that we take for granted as true. This does not mean the same thing as "there are no active volcanoes on Venus", but to get to our conclusion we would want that to be true. The gap between those t...

“This contrast in journalistic standards is best understood in terms of differing business strategies” didn’t jump out to me as the main conclusion when I read the stimulus. This really doesn’t seem like a discussion of the best ways to understand the journalistic standards. On my first read it look...