Training and Development activities are usually the result of employers making investments that respond to forces in its internal and external...

Training and Development activities are usually the result of employers making investments that respond to forces in its internal and external environments.  Training investments may be based on 1) business necessity--an organization realizes, for example, that it will not be effective without making a training investment, or that it would not meet its ongoing goals, or be in compliance with laws/regulations or its own policies without training.  In such cases, the investment is justified because the organization believes it has little choice but to invest in training,  Training investments may also be based on 2) business opportunities that it chooses to take advantage of.  In such cases the organization believes that training investments are voluntary but are justified because training will enable the organization to achieve a strategies such as new revenue, greater market awareness, or increased productivity. What are TWO examples of training that would respond to business necessity, and TWO examples of training that would respond to business opportunity.