Final answer:
Tacit knowledge is exemplified by personal knowledge based on experience, which is deeply rooted in action, procedures, and routines, and includes subjective insights that are acquired through hands-on practice rather than just theoretical understanding.
Step-by-step explanation:
Among the options provided, an example of tacit knowledge is the first one: Personal knowledge based on experience. Tacit knowledge is a type of knowledge that is difficult to transfer to another person by means of writing it down or verbalizing it. This kind of knowledge is gained through personal experiences and might include subjective insights, intuitions, and hunches.
Unlike propositional knowledge, which deals with knowledge of facts (such as knowledge of definitions or formulas) and is more readily articulated, tacit knowledge is deeply rooted in action, procedures, routines, commitment, and involves know-how. It contrasts with formal knowledge, which includes explicit knowledge that can be easily communicated and shared, such as knowledge of formal processes and scientific formulas.
As an example, knowing how to ride a bike is tacit, because while you can understand the physics behind it propositionally, actually being able to ride a bike skillfully comes from hands-on experience. Similarly, expressions like "Everyone has a price" or "You know how to push his buttons" imply an understanding of human behavior that comes from social experiences and interactions rather than formal study.