I'm sure the answer is William James.
The correct answer should be Adams' equity theory.
According to this theory, employees want to be equal at work, especially if they produce the same amount of work. So, if Bob and Tom do the same work, obviously they want to have equal paycheck as the other one, which is why Bob is unhappy because Tom's wage is higher.
When a glacier retreats, and the sea fills the resulting valley floor.
Answer:
A.............................................
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