It has an infinite energy supply. It is near the end of its life cycle. It is in its infancy in terms of energy consumption. It has consumed approximately one-half of its expendable energy.
I gave my students this multiple choice question: Which of these statements is most accurate about the Sun?

Only one answer is correct among these 4 choices:
- It has an infinite energy supply.
- It is near the end of its life cycle.
- It is in its infancy in terms of energy consumption.
- It has consumed approximately one-half of its expendable energy.

Could you tell me which one is correct?

It has consumed approximately one-half of its expendable energy.