Final answer:
The most common use of computers in pharmacies is to store and access the history of medications, which is crucial for patient safety and efficient pharmacy management.
Step-by-step explanation:
The most common use of computers in the pharmacy is B. Storing and accessing the history of medications. This function is vital for maintaining accurate records, ensuring patient safety, and allowing for the efficient management of prescription refills and inventory. It enables pharmacists to track patient medication histories, check for potential drug interactions, and provide personalized care. Computers also play a crucial role in other areas, such as accessing a patient's profile and accessing a medication's specifications, thereby supporting the pharmacists in advising physicians and patients regarding drug selection, dosage, side effects, and correct usage based on their extensive knowledge in chemistry and biology.