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.
Both require that DNA be manipulated in some way.
Answer: B
Explanation:
It was the first real battle in the revolution. Even though the British won, the patriots got a boost of self confidence, getting determined that they could fight the war.