Answer: Effective Managers.
Explanation:
 An effective manager is a manager that delivers successfully on tasks that he is in charge of and is very good in decision making. Manuel is well known for his ability to meet his objectives set and accurate decision making.
 
        
             
        
        
        
Answer:
your self-interest; their self interest
Explanation:
When you make a decision to buy a good, you make your choice in your self-interest. There could be different reasons to make such choices. This could be because the good could form part of your basic needs or because the prices are quite low.
When people make a decision to produce the good that you are buying, these people are making their decision in their own self-interest. This could also be to make money.
 
        
             
        
        
        
Answer:
B. save your document frequently
Explanation:
Saving your documents time to time will prevent loss of work on computer which could be possible due to different reasons like electricity off, some wiring issue  or even hardware/software of computer could be hanged.
So saving frequently can save your work also it is best practice to save in different name so that older history is maintained.
New solution to these problems are using cloud based documents those auto save your work and also maintain history.