Running a marathon in two years is not to be an example of a long-term goal.
The correct option is B.
What is the long-term goal?
Long-term goals are those which shows result for long time.
An example is exercising regularly will keep the body fit for a long time.
Long term goals take time to complete, or run forever.
These goals are necessary for a good life.
Thus, the correct option is B, run a marathon in two years.
Learn more about goal, here:
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