Which piggy got roast beef in this piggy went to market?

In the nursery rhyme "This Little Piggy," the pig that went to market is often associated with the one that represents the idea of commerce and indulgence. The specific pig that "had roast beef" is the one that stayed home, indicating a contrast between those who venture out and those who enjoy the comforts of home. Each pig in the rhyme has a distinct role, with the "this little piggy" who went to market symbolizing the pursuit of opportunity.