Astar produces energy by:
o
a. absorbing and releasing the matter of other stars.
b. rotating quickly on its axis.
o
o
c. creating helium from hydrogen in its core.
o
d. reflecting energy from nearby stars.

C. Creating helium from hydrogen in its core

Explanation: Stars produce energy majorly by nuclear fusion. The process of creating helium by merging hydrogen atoms to produce deuterium which in turn is converted to helium.

Option (C)

Explanation:

A star is an astronomical body that is located at a large distance from the earth. They appear to be shinning in the sky. The process of nuclear fusion takes place in the stars, where the nuclei of two smaller and lighter atoms are combined together in order to form a nucleus of heavier atoms. Here, the hydrogen atoms are combined to form a helium atom, and during this process of fusion, a significantly large amount of energy is released.

Thus, stars produce a large amount of energy by forming helium from the combination of hydrogen in its core.

Hence, the correct answer is option (C).

substitution is the answer in this case