Final answer:
Option b. 'Fossil excavations can currently be seen in the Badlands of South Dakota.' would be a good way to change the sentence to better fit with the rest of Sarah's report.
Step-by-step explanation:
The sentence that would be a good way to change 'You should totally see this stuff sometime-try to talk your parents into taking a trip to the Badlands' to better fit with the rest of Sarah's report is option b. 'Fossil excavations can currently be seen in the Badlands of South Dakota.'
This option fits well with the report because it provides relevant information about fossils and their location in the Badlands of South Dakota. It maintains the original idea of encouraging a visit to the Badlands while also adding factual information about fossil excavations.