When Oil Prices Increased to Record Levels in the 1970s

Multiple Choice

When oil prices increased to record levels in the 1970s, salaries dramatically increased for petroleum geologists skilled in finding oil. Those geologists who moved from other areas to the higher paying jobs were

A) seeking to profit from society's needs rather than following the guidance of the invisible hand, which would have led them to seek jobs serving society rather than jobs with higher pay.
B) following the guidance of the invisible hand and probably serving society's best interests as well as their own.
C) causing oil prices to rise even more by moving to jobs with higher salaries.
D) helping themselves but hurting the economy.