I hope I’m not wrong but my best guess is B
The first one, “it was made up of independent city-states united by a common culture”
(1) data triangulation: the use of multiple data sources in a single study; (2) investigator triangulation: the use of multiple investigators/research- ers to study a particular phenomenon; (3) theory triangulation
A government is a group of people/system, often in a state, that monitors
-businesses
-banks
-roads
-water
-sewers
-food
-medicine
-safety
-electricty
-And more!
<em>-StarGaze</em>
The Golden Age. Generally speaking, historians and technicians refer to the time between post WWI and the Great Depression as the "Golden Age" of piano building, because by and large, many people had come to the conclusion that the design and general conception of the instrument was 'complete', and that there was very little room for further improvements.
Hope this is right:)