D most likely .
https://bizfluent.com/info-8210448-purposes-windmills-1800s.html
According to the concept of levels of processing, the process of <u>encoding</u> involves three levels.
<h3>What is a
processing?</h3>
In general, the communication process is made up of four key components and those components include an encoding, medium of transmission, decoding, and feedback.
There are two factors in the process, and those two factors are present in the form of the sender and the receiver. In conclusion, in accordance to the concept of levels of processing, the process of <u>encoding</u> involves three levels which are visual encoding, acoustic encoding and semantic encoding.
Read more about communication process
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The answer is :
<span>
B. they were unfamiliar with the land.
</span>
The unfamiliarity included their knowledge of the usage of
proper land for a particular crop, or at times they chose wrong crop for a land
where that was not meant to be. Despite their failure, they showed those who
came after the way to successful farming.