Answer:
The correct answer is he calls Billy Jo to help Bolsa to solve the case.
Step-by-step explanation:
This question corresponds to the story Sancho and Bolsa.
Sancho tells Bolsa that he has already figured out how to solve the case, and asks Bolsa to get in the car, without giving any more details. Once in the car, he says that they will go to Mr Billy Jo Jim Bob and tell him that they have found William and that he will tell them what to do.
Given this information we can say that the correct answer is he calls Billy Jo to help Bolsa to solve the case.