He loves Ernesto and tells him important facts about the United States.
Explanation:
From the topic sentence stated by the student, Jeremy, we are made to understand that Jose was helpful to Ernesto in his quest of preparing for life in the United States. A very important way to prepare a person for life in another country would entail feeding them with vital information about the place. This information would make them knowledgeable about the place and then they can easily find their way should they eventually move to that country.
So the explanation above is the most useful way Jose could have helped Ernesto prepare for life in the United States.
