That is going to be C) adolescence because when one is an infant they don't know much and they are just learning, as a kid in our childhood. Kids just don't pay attention and want to do whatever. We would already know life skills as an adult so it is adolescence
The answer should be large vehicles. One should not park next to large vehicles or vehicles that are too close to the white space markings. You should make sure their is enough space to get in and out easily.
This is true among this age range