Which of the Following Would Be Considered a Valid Conclusion

Multiple Choice

Which of the following would be considered a valid conclusion regarding Herzberg's two-factor theory?

A) The presence of motivation factors is not necessarily essential to enhancing employee motivation to excel at work.
B) Hygiene factors are of critical value to enhancing motivation.
C) The model has adequately addressed individual differences.
D) Hygiene factors are of some importance up to a threshold level.