Final answer:
Broker Jenny assigned a different agent to the buyer to avoid a conflict of interest for Agent Sally, who was designated as the seller's agent.
Step-by-step explanation:
The most likely explanation for Broker Jenny's actions is that she wanted to avoid a conflict of interest. By assigning a different agent to the buyer, Jenny ensured that Agent Sally could fully represent the seller's interests without any bias or conflicts. This is a common practice in real estate to ensure fair and ethical representation.