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.

D.   researching the topic.

Explanation:

The question says what would be best for Tomas to do on his own and the answer to that is to research the topic.

Towns and small farms are usually for land, lakes, rivers, and seas.they also produce other food, like crops.it's also where animals are, where we get our meat.large plantations normally have forests, where crops are grown for sale. (similar to farms)plantations have larger fields of crops.our wine, sugar canes, and fruits come from plantations.