C. Helps give people the push they need.
A- Americans built up personal debt by using credit to pay for things.
<u>Answer:
</u>
None of the given options are necessarily correct.
Option: (D)
<u>Explanation:
</u>
- The fluctuations in the rate or amount of production through business are subject to change in the factors of production involved.
- The complications of possibilities presented in the given case can culminate in many varied outputs that cannot be determined clearly.
- Although, it is true that with a change in the degree of involvement of various factors of production, the output is more vulnerable to change.
