This is a question that refers to philosophical utilitarianism.
It is the search for the maximum happiness and pleasure, with the least possible suffering, but with an implicit moral question. When we are led to the feeling of pain or pleasure, we determine the way forward and know what is right or wrong.
In this way, it is possible that we are facing a moral dilemma. In our quest for happiness or minimizing our pain, our actions can impact others. That is, utilitarianism is essentially a teleological and consequentialist theory. Therefore, we must seek the impartial maximization of the happiness of all affected by our attitudes, regardless of the affective ties.
The correct answer is - public information.
The census data is an example of public information. The census data itself is consisted of all important informations about the population of the given country and all those informations are used for making the long term (mainly) economic politics for the country, but also represent an official proof that can be seen at any time by the population so that they know what's the situation in the country from certain perspectives.
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The money a student spends on rent for his apartment while attending school is not an example of the opportunity cost of going to school.</h2>
Explanation: Opportunity cost is defined as the loss of potential profit from other option when one option is chosen. For each choice we make, potential gain is lost by choosing that alternative.
We invest in university expenses as we believe, it will pay off someday in the future. The people who graduate with a degree gets higher salary and get long term career than a student without a degree.
The nap a student could have enjoyed without attending class is not an example of the opportunity cost as investment in colleges offer much more return.
The Unions strategy wa sto only give supplies and food to their soldiers at the fort, because they didn't want to start fighting in the country and start a civil war.