Which of the Following Is True About the Compensation Strategies

Which of the following is true about the compensation strategies for scientists and engineers?

A) Organizations generally do not provide perks to scientists and engineers, such as flexible work schedules, large offices, and lavish athletic facilities.
B) Scientists and engineers generally advance their careers along the scientific track as they have few opportunities to pursue management responsibilities.
C) Most scientists and engineers are not entitled to performance-based incentives such as profit sharing and stock ownership incentives.
D) The knowledge and skills of engineers and scientists never become obsolete and hence their salaries continue to rise during the course of their careers.
E) Due to the volatile nature of jobs and salaries in these occupations, organizations rely heavily on external market data in determining the base pay for scientists and engineers.