The Binding Energy Per Nucleon of a Nucleus

The binding energy per nucleon of a nucleus

A) is approximately constant throughout the periodic table, except for very light nuclei.
B) decreases steadily as we go to heavier elements.
C) has a maximum near iron in the periodic table and decreases after that for heavier elements.
D) increases steadily as we go to heavier elements.
E) has a minimum near iron in the periodic table and increases after that for heavier elements.