In most organizations, coworkers and others have knowledge or suspicions that fraud

In most organizations, coworkers and others have knowledge or suspicions that fraud is occurring but do not come forward with their information. there are several major reasons for this hesitancy. which of the following is not one among them?
a. it is usually impossible to know for sure that a fraud is taking place.
b. the suspicious action is not affecting their work.
c. they fear reprisal for being a whistle-blower.
d. they often think that squealing on someone is wrong.