Excerpt from My Antonia
Willa Cather
Sometimes I went south to visit our German neighbours and to admire their catalpa grove, or to see the big elm tree that grew
up out of a deep crack in the earth and had a hawk's nest in its branches. Trees were so rare in that country, and they had to
make such a hard fight to grow, that we used to feel anxious about them, and visit them as if they were persons. It must have
been the scarcity of detail in that tawny landscape that made detail so precious
The narrator worries about the trees in that part of the country because

A) they are so scarce