It may be either serf or manor if none of these helps you than I apologies i'm not very good at history.
The Scientific Revolution was a series of events that marked the emergence of modern science during the early modern period, when developments in mathematics, physics, astronomy, biology (including human anatomy) and chemistry transformed the views of society about nature.
Answer:
The answer is "Option D".
Explanation:
The numbering of the choices are missing, which can be define in the attached file:
It implies, that the warriors and workers were equally relevant to the worker and fighting force, which might relate to the soldier or worker are mentioned underneath the paragraph. Each of them would have been shown in fair roles and waving their hands, that's why the choice d is correct.