Humans obtain energy in a number of different ways. about half of the electrical energy in the u. s. is generated by burning coal, largely because coal is very inexpensive. but some electrical energy is generated by capturing sunlight with solar panels.

which of these is a reason why many people want to use more solar panels and less coal?

a.
coal is a renewable resource, while sunlight is a nonrenewable resource.
b.
coal is more abundant than sunlight.
c.
burning coal tends to harm the environment more than using solar panels.
d.
coal energy is cleaner than solar energy.