Read the paragraph below and answer the question that follows:
for most of their lives, stars fuse elemental hydrogen into helium in their cores. two atoms of hydrogen are combined in a series of steps to create helium-4. these reactions account for 85% of the sun’s energy. the remaining 15% comes from reactions that produce the elements beryllium and lithium. infer which element is the most common in a star such as our sun.
question 6 options:
a. hydrogen because it takes 2 hydrogen atoms to make helium
b. helium because it is constantly being made in the sun
c. beryllium because it accounts for 15% of the energy
d. lithium because it's smaller than beryllium