The right answer is B because he doesn't believe that the animals know enough to change.
You could read Chapter Nineteen for the answer
I manage my screen time by creating new habits and distracting myself from using my cellphone so much. I try working on homework or listening to music, going on runs to the park and helping my mom tiding up the house. Since online classes started my screen time has gone down, I believe it’s because I’ve been paying attention in class and focusing on my school work rather than my phone and social media.