The correct option, regarding the person Billy Jo is going to see according to the call made by Bolsa, is: Mrs. Morningstar.
In the story of the detectives Sancho and Bolsa, little by little they realize that Billy Jo is an evil person who could harm William Morningstar, whom he paid them to look for.
Therefore, in an attempt to identify if it is Billy Jo who has William, Bolsa calls him and tells him that Mrs. Morningstar, who is William's aunt, is going to meet him to see his reaction to it and get more information.
If you want to learn more about Sancho and Bolsa, you can visit the following link: https://brainly.com/question/15911889
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