Answer: B. C) company begins to encounter diminishing growth prospects in its mainstay business.
Step-by-step explanation:
All Companies should endeavour for Growth. Growth means survival in this world and a company that is not growing will eventually die out.
If a Company begins to experience a situation where the prospects for growth in their chosen industry is reducing, they should, in the interest of their survival, seek alternative business that they can engage in. Look at Oil Companies like Shell for instance, they realize that Fossil Fuels will not last forever and have started investing massively in Clean Energy because they can see that Growth Prospects in Oil are starting to diminish.