Giving a child a hug for doing something right would be an example of a(n):
a) informal positive sanction.
b) informal removal of a sanction.
c) formal positive sanction.
d) informal deterrent for deviance.
e) natural parental behavior.

Letter A is the correct answer.

We know that sanctions can be either positive or negative, also known as rewards or punishments. They are good techniques used to approve/disapprove the behavior of others and realign an straying individual towards social norms. Giving a child a hug for doing something right is a good example of informal positive sanction.

The trade-offs between free enterprise and government intervention associated with the United States' antitrust policies are the freedom of companies to create their own selling points in order to make the maximum profit out of their products and services.
In free enterprise, the people decide which corporations will succeed. With government intervention, some government official will decide which companies will succeed. 

Free enterprise example: Apple 
Government intervention example: Solyndra