<span>Jack Canfield is a motivational speaker that has identified what he calls 64 essential principles that are key to a successful life and achieving goals.Many of them are quite simple such as "Take 100% Responsibility for Your Life", "Believe It’s Possible", and "Keep Your Agreements". They can be found in his book "The Success Principles: How to Get From Where You Are to Where You Want to Be".</span>
Answer: Opportunity cost
Explanation:
Opportunity cost is known to be the benefit an individual would have enjoyed if he or she had done not something else. It is the sacrifice made in choosing between two options when taking decision. For example: choosing between doing homework or watching a programme on television. Thus, if an individual decide to do the homework, watching a programme on television is the alternative forgone which is the opportunity cost.
Answer:
B. It drastically decreased the population of Europe
Explanation:
The raise in the price of a product causes an increase in competition.