What is a disadvantage of hard drives?

The correct choice reflects one of the notable disadvantages of hard drives, which is related to their lack of portability compared to other storage solutions like USB flash drives or external SSDs. Traditional hard drives, especially the larger and more powerful internal models, are bulkier and more delicate, making them less convenient for users who need to transport them frequently. Their design is more suited for stationary use within a desktop computer or as a part of a server.

While hard drives do offer significant storage capacities, advancements in technology have continually improved these capacities, making the first option less of a concern. The cost of hard drives can also vary widely based on the type and capacity, which means that while some may be expensive, there are plenty of affordable options on the market. Lastly, while hard drives can be prone to data corruption, this issue can also affect other types of storage devices, and it's not exclusive to hard drives. Hence, these factors make hard drives relatively less portable compared to their alternatives, affirming the correctness of the choice you provided.