Answer to prepare for a group discussion on his own, it would be best for tomas to begin by working with the group to establish roles. establishing the discussion’s goals. setting the rules for the discussion. researching the topic.

To prepare for a group discussion on his own, it would be best for Tomas to begin by researching the topic.

The term "Group Discussion", commonly known as GD, refers to a methodology used by an organization (whether it is a company, institute, school, etc.) which aim is to evaluate the candidate's eligibility. GDs represent an important part of the recruitment or admission process in an institution or company. During this process, a topic or situation is given to the group of candidates, they have some time to think about it, and finally they are given more time to discuss it among themselves.

by researching the topic

Explanation

the question says " to prepare on his own"

d is the only thing he can do on his own

answer; criminal law;