The right answer is " Increasing the number of border patrol agents".
The explanation for this response is that the US Border Patrol routinely faces drug traffickers, cartel and gang members, human traffickers and other criminals who cross the border illegally. Many people who are against immigration believe that if they increase the number of border patrol agents the passage of immigrants will be even smaller.
Answer:" d. Stockholders for a pharmaceuticals company that has a new cancer drug" is the best option from the list because this involves the most free-market operations.