Answer:
c. discourage educational investments
Explanation:
Brain drain is the concept given to people living one country and goes to another country to work and earn livelihood. It is most commonly termed for those people who are highly educated and migrate to a wealthier foreign country to work and increase return on the human capital investment.
In the context, if the government of the home country impose a tax on brain drain on people leaving the home country, people would likely to invest less on their education and it would also decrease the number of people from getting a higher education degree in the home country.
Thus option (c) is the correct option.
