Final answer:
Rick is in the cognitive stage of Fitts and Posner's model while learning to hold a baseball bat, as he consciously processes his coach's guidance and feedback.
Step-by-step explanation:
Rick learning how to hold a baseball bat and practicing under his coach's supervision exemplifies the cognitive stage in the Fitts and Posner model of learning. This initial phase involves understanding the concept and mechanics of the movement, which requires a conscious and deliberate effort to incorporate the coach's instructions and feedback.
The cognitive stage is where learners make mistakes, receive corrections and slowly build a foundation for the skill they're acquiring before moving on to more automatic and less consciously thought-out actions in later stages, such as the associative and autonomous stages.