Which of the following is an example of self-interest that attempts to promote the public interest?
a mother prevents her children from becoming vaccinated against measles, mumps, and rubella because of fears of autism.
the president of the united states restricts american consumers from buying foreign-made products.
an entrepreneur risks his life savings to open up a grocery store in an underserved area.
the new york yankees beat the boston red sox.

The president of the United States restricts American consumers from buying foreign-made products

Explanation:

Self interest is an action taken by an individual solely for his personal benefit. The opposite of self interest is public interest, public interest is individual action that tend to benefit the general public.

The directive from the president of the United States restricting consumers from buying foreign-made products is an action that will protect the individual citizens from the harmful effect of foreign goods as well improve the economic condition of united states, this may be in the area of encouraging the home industry, improved trade balance, foreign exchange management, e.t.c.

his average speed in km per hour is ≈ 55.4 km/h and about 15.4 m/s.