For each of the following situations, select the most likely cause of resistance to change and indicate the most effective change tactic.

junk-to-go, a cleanup company, has built a lucrative business hauling people’s castoffs to the dump. the managers of junk-to-go recently attended a "businesses of tomorrow" conference and are now telling employees that recycling is the wave of the future and they should recycle everything they possibly can. however, the employees don’t believe that management is really committed to the idea of recycling, because they see managers throwing cans and bottles in the garbage. now, many of the employees are questioning whether or not recycling is worth the extra effort it takes.
the most likely cause of resistance to change in this situation is:
self-interest on the part of the employees
managers and employees having different goals
the employees’ lack of understanding and trust
the most effective tactic for implementing change in this situation would be:
top management support
coercion
negotiation
participation