this excerpt contains a mixture of pathos and logos. you can see the logos in the way that the speaker discusses specific amounts of miles and waiting periods. this appeals to people in a logical way, because they might say, "you know, that's pretty true, it is a long way to go and it often doesn't give us results." the speaker finishes with an emotional appeal (pathos) by saying it will eventually be viewed as "folly and childishness." most people do not want to appear childish or as if they've wasted their time, so this is meant to pull on people's emotions. i believe your answer is C.