I believe the answer is: a. measured by how well she or he does the job.
In the common good based system, there would be no stratification between workers. Which mean that performance would be measured not through numbers of profit or total output, but from whether the workers able to fulfil the expectation from other members of the group.
Answer:
BECAUSE THEY HUNGRY !!!!!!!!!!!!!!!!!!
Explanation:
they help see that not one branch has too much power