Read the following from T.C. Boyle's "Top of the Food Chain."
Yes, that's right, Senator, DDT:
dichlorodiphenyltrichloroethane.
Yes, I'm well aware of that fact, sir. But just because we banned it domestically, under pressure from the bird watching contingent and the hopheads down at the EPA, it doesn't necessarily follow that the rest of the world - especially the developing world - is about to jump on the bandwagon. And that's the key word here, Senator: developing. You've got to realize this is Borneo we're talking about here, not Port Townsend. These people don't know from square one about sanitation, disease control, pest eradication - or even personal hygiene, if you want to come right down to it.

It rains a hundred and twenty inches a year, minimum. They dig up roots in the jungle. They've still got headhunters along the Rajang River, for god's sake.

Which sentence from the excerpt shows that the narrator is using logos?
A. These people don't know from square one about sanitation, disease control, pest eradication - or even personal hygiene, if you want to come right down to it.
B. Yes, that's right, Senator, DDT: dichlorodiphenyltrichloroethane.
C. But just because we banned it domestically, under pressure from the bird watching contingent and the hopheads down at the EPA, it doesn't necessarily follow that the rest of the world - especially the developing world - is about to jump on the bandwagon.
D. They've still got headhunters along the Rajang River, for god's sake.