By paying college students a subsidy equal to the external benefit from a college education, the government will cause students to internalize the externality. that is, the external benefit from a college education will become a a. social benefit received by producers, and the supply curve for college educations will shift up. b. private benefit received by college students, and the demand curve for college educations will shift up. c. social benefit received by producers, and the supply curve for college educations will shift down. d. private benefit received by college students, and the demand curve for college educations will shift down.