Research suggests that the most important determinant of new product success is:

The answer is managerial behavior. It is because this is the most important determinant of new product success because of its application and function of having to provide an increase with the participation of employees and the products that are being consumed by the consumers.

the assumption the narrator makes in this excerpt is that the messages he heards were going to hurt the narrator's mom; the narrator just springs in to action. the narrator doesn't specify in this excerpt why he believes that the messages present a problem that requires protection.