Emails, Documents, Videos and Audios are examples of- (a) Structured data (b) Unstructured data (c) Semi-structured data (d) None of these

A

Explanation:

because if you have videos, audios and documentation you can easily see that this has structure and good explainations.

the answer to your question would be something called hertz. the unit of measurement called a hertz, which is one cycle per second, is used to measure clock speed. within one cycle, your computer processes, refreshes, or updates itself to the changes that it is going through. in the case of computer clock speed, one hertz equals one tick per second. the clock speed of computers is usually measured in megahertz (mhz) or gigahertz (ghz)

answerthe reference of the object;