Read the sample paragraph.

yellowstone possesses nearly 60 percent of the world's geysers. the upper geyser basin is home to more geysers than any other part of the park. within one square mile, there are at least 150 of them. park naturalists are able to predict the eruptions of only five of the major geysers, including old faithful.

which sentence provides elaboration and includes a specific example?

a.
within one square mile, there are at least 150 of them.

b.
the upper geyser basin is home to more geysers than any other part of the park.

c.
park naturalists are able to predict the eruptions of only five of the major geysers, including old faithful,

d.
yellowstone possesses nearly 60 percent of the world's geysers.