B , articular cartilage is what covers the joint
The correct answer is D. Quaternary
Explanation:
In economy, there are mainly four economic sectors that cover the different economic activities a nation or state can have. These includes the primary sector that refers to extraction of raw materials including activities such as agriculture or fishing; the secondary sector that deals with the manufacturing process such as factories that produce bicycles; the tertiary sector that refers to services or intangible goods such as tourism and the quaternary sector that deals with information and knowledge services such as education or development or technology. Considering this, the sector of the economy in which someone working as a software developer would be is the quaternary as this sector deals with the development of technology and this includes the development of software.
An archenemy is someone who is hostile towards someone or something else. In this case, the US and Soviet Union were archenemies because they were both very powerful and both of them wanted to be better than the other.
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