Subject: multicultural studies

miguel's latino friends say that he is "selling out" when he takes extra science and math classes. why is saying "selling out" harmful?

a. it discourages students of color from working hard in school.
b. it results in students of color being expelled from school.
c. it suggests that being white has its privileges.
d. all of the above

The correct option is A.
The phrase 'selling out' means to be doing something that was previously against one's principle. It can also means to join an opposing group. 
Miguel friends, who are Latinos said that he was selling out, when he started taking extra classes in science and math. This is a harmful statement to make because it will discourage other foreign students from taking extra classes and from working hard in school generally.