Which of the following is true about this excerpt?

The excerpt contains specific statistics like "nearly 8 out of 10 teens own a cell phone" and "37 percent own a smartphone," which are credible evidence. However, phrases like "To not do so is just dumb" and "Their parents obviously don't truly care about their education" indicate a disrespectful tone that needs revision. Therefore, the excerpt uses specific, credible evidence but employs a disrespectful tone that should be revised.