Hello. Unfortunately it is not possible to answer your question, because you did not submit the text it refers to, however, I will try to help you as best I can.
The tools used in a text to support the information presented by the author are called textual evidence. This evidence aims to show that the author's statements are true, presenting facts that justify the statements presented.
In that case, to find out what kind of evidence Rodriguez used to support the claims in his text, you should read the text and pay attention to the following elements:
1. If Rodrigues justifies his statement, with a short story that has an ironic and playful tone, it is because he used an anecdote.
2. If he justified the statements by presenting graphs, rankings, numbers and mathematical elements, it is because he used statistics.
3. If he used the opinion of someone who is an expert in the subject he is presenting, it is because he used the testimony of an expert.
