Answer:
a) The inability to exclude drivers from using the freeway causes it to be overused.
Explanation:
Due to the fact that the Freeway 405 is meant to be used mostly by the predestrains, its usuage by the motorists caused it to be constantly congested.
It is a tragedy to the commons (ordinary people ) as a result of the fact that, the government were unablr to restrict the drivers from using the freeway. This made life difficult for the common people due to the congestions which occurs daily on that freeway.
Sustainability in an environmental context implies that humans don't have a negative impact on the world. So any way that reduces human impact, such as recycling, is definitely a way to promote sustainability. The alternative to recycling is simply to throw it into the trash or litter, it's obvious which practice is preferable when regarding sustainability.
<span> A would be a non-monetary incentive</span>
