Read the following article and answer the question by choosing from the options.

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 .

What kind of person was Clark ?
Choices:
-Clark was a fool.
-None of the above choices ..
-Clark was a swimmer ..
-Clark was learning to swim .....A:
Clark was a swimmer .