To find out the maincause of Fran and Roberto's pain, we must carefully listen to the audio, identify the keywords and classify each cause of pain with each character.
<h3>How to identify the causes of pain?</h3>
To identify the causes of each character'spain, we must listen to the audio and follow these steps:
Identify key words that relate to causes of pain.
Identify which cause corresponds to each character.
Note: This question is incomplete because the audio is missing. However I can answer it based on my general knowledge.