Based on the context of your question about paragraph 5, which discusses César Chavez, it seems there may be some confusion, as the options provided relate to the use of cell phones in the classroom. In regard to the original text about César Chavez, it does not have a paragraph 5 that discusses cell phone use.
However, if we were to answer the question regarding the support of a central claim about the responsible use of technology in education (which appears to be the focus of your question), the best option would be:
C. The information in paragraph 5 supports the author's central claim by providing examples of ways that teachers can use cell phones to give daily exams that track student progress.
This option supports a claim by demonstrating a practical application of the technology in an educational setting. If you need clarification or if you meant to ask a question specifically related to César Chavez, please let me know!