Map of Boston MA. in 1814. The city is shown with it's original border in 1814, and the city is densely clustered near the shore. A note on the map states that fainter lines show the streets as of 1880. These lines can be seen extending from the original map image to the borders of the map. New streets and bridges appear to have been built since 1814.

Use the map of Boston to answer the following question:

This maps shows changes in

a) city development over time

b) residential and business areas

c) the water level surrounding Boston

d) amount of trade conducted in the city

a) city development over time