Final answer:
To infer how Sal's mother died, one would need context from the narrative. Without specific details, any conclusion would be speculative. Contextual clues can lead to inferences such as death from surgical complications, or a car accident.
Step-by-step explanation:
The best inference about how Sal's mother died can depend on the context provided by the story or text being referred to. However, without specific information from the narrative, it is not possible to provide a definitive answer. For logical inferences, one would typically use clues from the text to form a conclusion. For example, if the narrative mentioned that Sal's mother had undergone surgery and there were complications talked about, then one could infer that she probably died from complications of her surgery. Similarly, if there were hints or discussions about mental health or depression, one might infer that she probably took her own life. If there was a mention of a car accident or a tragic event on the road, it would lead to the inference that she probably died in a car accident. Without textual evidence, one cannot claim that she is probably still alive.