Answer:
Option B. With his response to Ramona, Hans is demonstrating the group discussion technique of using evidence to support your opinions.
Step-by-step explanation:
When Ramona asks Han if he has any knowledge about a statement another group member made, Hans reports to the book to find evidence that proves that the statement was correct. When conduction group discussions is advised to use certain techniques so that the conversation has a positive flow, exchange of opinions and is backed up with facts and objective statements.