Our people finally sorted it out a couple weeks later. The chemical, which, by the way, cut down the number of
mosquitoes exponentially, had the unfortunate side effect
of killing off this little wasp – I've got the scientific name
for it somewhere in my report here, if you're interested
that preyed on a type of caterpillar that in turn ate palm leaves. Well, with the wasps gone, the caterpillars hatched out with nothing to keep them in check and chewed the roofs to pieces, and that was unfortunate, we admit it, and we had a real cost overrun on replacing those roofs with tin ... but the people were happier, I think, in the long run, because let's face it, no matter how tightly you weave those palm leaves, they're just not going to keep the water out like tin. Of course, nothing's perfect, and we had a lot of complaints about the rain drumming on the panels, people unable to sleep and what-have-you. ...

Which passage from the excerpt shows that the narrator is using logos?

A. I've got the scientific name for it somewhere in my report here, if you're interested

B. The chemical, which, by the way, cut down the number of
mosquitoes exponentially, had the unfortunate side effect of killing off this little wasp

C. that was unfortunate, we admit it, and we had a real cost overrun on replacing those roofs with tin

D. the people were happier, I think, in the long run, because let's face it, no matter how tightly you weave those palm leaves, they're just not going to keep the water out like tin