Kotowski’s use of statistics and expert testimony from reputable scholars makes his argument about volcanic change more effective than ferguson’s.

which is an example of textual evidence that supports this thesis?

a.

kotowski argues that volcanoes erupt more often than previously believed.
b.

kotowski cites four scholars who specialize in the study of volcanoes, whereas ferguson cites only the encyclopedia.
c.

ferguson claims that volcanic change occurs slowly, but kotowski argues that change is occurring at an increasingly rapid pace.
d.

ferguson’s conclusion parallels that of kotowski’s.