The correct answer is C. Look at the main parts or paragraphs and infer the answer.
Explanation
When a reading test is being carried out, it is possible to find questions that ask about the text in general, to solve this type of questions it is necessary to understand what each of the parts or paragraphs of the text says and establish the common points of all of them to know a general idea. According to the above, the correct answer is C. Look at the main parts or paragraphs and infer the answer.