There are many different ways that this could be answered, but I believe that the answer is B, Safety. This is because self driving cars are programmed to work by following rules e.g. staying in the lines, stopping at the traffic lights etc. Also, they have no emotion so they can't flip out and drive like crazy and can't be rebellious as they aren't programmed like that. However, if they aren't programmed properly there would be havoc and chaos.
C… Because he saw the consciences if he didn't change now in the present
Answer:
Initially, Buck's response to the dognappers is one of quiet acceptance. But that's because he doesn't yet know he's being stolen. He instinctively trusts Manuel, and so has no reason to think that he's up to no good. So when Manuel places the rope around his neck, he accepts it with quiet dignity.
Explanation:
The tone is more depressing