What are the essays peter paul zhal wrote ?

What task did the surveyors do? a. they studied the landscape to determine the most direct route for building a road. b. they designed treadmills that lifted blocks of stone to where they were needed. c. they dug trenches and filled them with sand, concrete, and large blocks to form a road.

What does this excerpt explain about this setting

Is conciseness and formality more of a courtesy than a requirement in an adjustment letter