Final answer:
The subject of this question is English, and the correct answer is stories. In the context given, 'You've heard too many tall tales, my boy' suggests that the person has been listening to some exaggerated or untrue stories.
Step-by-step explanation:
The subject of this question is English as it involves understanding the meaning of certain words and phrases in a given context.
In this question, the phrase 'You've heard too many tall tales, my boy' is referring to stories that are exaggerated or not entirely true. The correct answer is a) Stories.
Examples of tall tales could be folktales like Paul Bunyan or Johnny Appleseed, which feature exaggerated or impossible events.