The correct option is Option A - using credit to pay for purchases.
Explanation:
The products and services offered today through economic systems exist to satisfy human needs. The higher the level of satisfaction of needs met, the greater the positioning of a product or service that can make an individual millionaire.
To create or invent something that does not yet exist and be extremely profitable, it is necessary to think about human priorities, such as health and technology. An invention that could be successful would be the development of a cure for diseases such as drugs that destroy cancer cells and create other healthy cells without side effects to humans, or in the current world context, an inexpensive and easily developed anti-coronavirus drug.
One way to speed up the acquisition of classically conditioned response is to INCREASE THE INTENSITY OF BOTH THE CONDITIONED STIMULUS AND UNCONDITIONED UNCONDITIONED STIMULUS.
Acquisition refers to how learned responses are strengthened or changed over time. Classical conditioning refers to the learning process which occur when two stimuli are repeatedly paired. In order to increase the rate of learning [acquisition], the intensity of both the condition and unconditioned stimulus can be increased.