Final answer:
The cerebro-cerebellum is located in the lateral cerebellar hemispheres and its main function is the planning and initiation of movements.
Step-by-step explanation:
The cerebro-cerebellum is located in the lateral hemispheres of the cerebellum, specifically within the region referred to as the cerebrocerebellum. The primary function of the cerebrocerebellum is the planning and initiation of voluntary movements. Therefore, the correct answer to the question posed is c. Cerebrocerebellum; Planning and initiation of movements. This region receives significant input from the cerebral cortex through the cortico-ponto-cerebellar pathway and its connections are primarily involved with motor planning, which is returned through the thalamic projections back to the premotor and motor cortices. Processing here is crucial for complex movements and enables the performance of learned motor skills like hitting a softball or touch typing.