The correct interpretation based on the interquartile ranges provided is:
Stock B has more variability than Stock A.
The interquartile range (IQR) measures the spread of the middle 50% of the data. A higher IQR indicates greater variability in stock prices. Since Stock B has an IQR of 11 and Stock A has an IQR of 3, it shows that Stock B's prices are more spread out and therefore more variable than those of Stock A.