What was the first philosopher

The first philosopher is usually said to have been Thales.

Thales of Miletus is traditionally regarded as the first Western philosopher and mathematician. Thales was the founder of the philosophy that all of Nature had developed from one source. According to Heraclitus Homericus (540–480 BCE), Thales drew this conclusion from the observation that most things turn into air, slime, and earth. Thales thus proposed that things change from one form to another.

Hope that helps. x

the answern should be b, if it is the part where the mob has gathered