What happens when a corked bottle is kept upright during storage?

When a corked bottle is kept upright during storage, the correct outcome involves the cork potentially drying out and leading to oxidation. A cork is designed to fit snugly in the neck of the bottle to create a seal, preventing air from entering and maintaining the wine's quality. However, if the bottle is stored upright, the wine does not keep the cork moist. Over time, this can lead to the cork drying out and shrinking, which compromises the seal. As a result, air can enter the bottle, leading to oxidation, which negatively affects the wine's flavor, aroma, and overall quality.

This understanding highlights the importance of storing wine bottles horizontally when using cork closures. This position keeps the cork in contact with the wine, ensuring it remains moist and maintains its sealing capability. The other outcomes provided in the options do not relate directly to the issue of cork integrity in upright storage and would not occur under these conditions.