Question: Coal is solid rock that began as organic material that was deposited in a swamp. The formation of coal suggests that

What is the correct answer to the question from the following choices?
Select from: [+] coal is made mostly of skeletal remains of animals.; [+] coal is formed from magma that has solidified over time.; [+] it quickly becomes petrified when water is removed.; [+] geologic processes continue over millions of years.;
geologic processes continue over millions of years.