How did the use of one natural resource (coal) lead to a growth in the availability of natural resources generally in England?
Select one:

a.
Coal was cheap in England because coal mines were located everywhere througout the country.

b.
Using coal to power factories increased the demand for coal, which led to innovations in the use of other natural resources.

c.
The small amount of coal needed to reach far-away areas made it possible to find, collect, and transport more natural resources.

d.
The technology innovations used to produce coal led to technologies that made use of other natural resources.