Gregor Mendel is a German scientist widely considered the founder of the modern science of genetics.
The USA is bounded on the East mostly by the Atlantic Ocean,
and by the Gulf of Mexico over a small distance.
There is a finite amount of energy in the universe. What does this mean?
B There is a limited amount of energy in the universe.
This is trick because technically all but C are correct. If you can only choose one answer I would go with D.