Read the following context and choose the best option to answer the question.
Context: It was just that Mama Kent did n't raise a fool , and Bruce never seemed to mind when Clark stopped over for an evening swim . The sun was low on the horizon and the fireflies were just starting to flit around the pool area . Crickets chirruped and the small track lights that illuminated the courtyard around the pool flicked on as dusk approached . Clark sighed in contentment and did another slow lap around the pool .
Question: What kind of person was Clark ?
Options: 
- Clark was a fool
 - None of the above choices .
 - Clark was a swimmer .
 - Clark was learning to swim .


Clark was a swimmer .