If 'In the most extreme case, a stock-out might cause a customer to switch retailers, costing the lifetime value of that customer and others who might defect due to negative word-of-mouth.' is true, does it logically mean that 'A customer has the option to switch their preferred retailer.' also is?
In the most extreme case, a stock-out might cause a customer to switch retailers, costing the lifetime value of that customer and others who might defect due to negative word-of-mouth.###A customer has the option to switch their preferred retailer.