<span>A classification level must be assigned to information when that information is determined to be classified. A classification level indicates the relative importance of classified information to national security and thereby determines the specific security requirements applicable to that information. Clearly defined classification levels are essential to an effective classification system</span>
Answer:
B. The focus is on ideas instead of physical products
Explanation:
Post-industrial of economy refers to a period of economic growth that is led by Services , scientific research, and data information industry rather than manufacturing.
Since services industry do not necessarily produce physical products, ideas and creativity often become the more important driving factors to provide the costumers with a more unique possibilities.
Why other options are wrong:
- Raw materials are made into goods. This happened in an economy dominated by manufacturing, which happened before post-industrial economy.
- People do not use gold coins for purchased - This happen ever since paper money was invented. Industrialization has no connection to it.
- Money is exchanged for goods and services, this happen in all period of economy.
The acceptable reasons for study history is B.) It helps support common cultral understanding.
Why?? You would be accepting and learning new and different things about different people. And learning so much about humans past and how they worked and did things differently. So then maybe we can understand why some people do certain things. Like quanza or something. Or hanuukah. ( Sorry i know i proably spelled those wrong)
Anyway i hope this helps!! And can i please get brainliest.