Based on the information in the graph, why is energy released during the fusion of hydrogen (H) into helium (He)?

A. The hydrogen-1 nuclei (H-1) are more stable than the helium-4
(He-4) nucleus is, because they have less binding energy per
nucleon than the helium has
B. The hydrogen (H) nuclei are lower in energy than the helium (He)
nucleus is, so more energy is stored in a helium nucleus,
C. The helium (He) nucleus is more stable than the hydrogen (H)
nuclei are, because more mass is converted into binding energy in
helium
D. There are fewer nucleons in a helium-4 (He 4) nucleus than there
are in four hydrogen-1 (H-1) nuclei, so there is more energy