Q1: In the JSON code, manually add a new point with the coordinates -73.66333007812499, 45.4986468234261. What city is this?
Q2: How did d3 know to put the generated image into right spot on the page? Which line in the D3 script above controls this? Explain using HTML terminology.
var svg = d3.select("#body")
Q3: Why did we pick a value of around 90?
To set America as the center of the map
Q4: What CSS style would we need to add and where if we wanted to underline the labels?