Final answer:
Without the specific advice given by Brokers A, B, and C, it is not possible to determine which, if any, provided incorrect advice. The question seems incomplete.
Step-by-step explanation:
The query "Amanda talks with several different brokers at a social gathering. She hears the following advice from Brokers A, B, and C. Which broker, if any, gave her incorrect advice? 1) Broker A 2) Broker B 3) Broker C 4) None of the brokers" seems to be incomplete, as the specific advice given by each broker is not mentioned. To provide an accurate assessment of which broker, if any, provided incorrect advice, the details of what each broker said would be required. Without this information, it is not possible to determine which advice was incorrect. For Amanda and others engaging in conversations about financial or investment advice, it's critical to consider the source and validity of the information received.