I think politics would be the answer but I’m not sure maybe history
Decoding is the reading or translating symbols into a language that is understandable or easily interpreted. It is also known as "word identification". Therefore, decoding is putting thoughts, ideas, and feelings into words and messages. Decoding also means to decipher or to translate.
Process is my best guess, hope I helped!
The strategy that will help you revise your choice of words to achieve your purpose is to think of what message you want to give such as in an introduction to a topic whereby you want to cover the main points to be expounded on in the main paper or essay or chapter of a book you may be writing to set the stage for their full explanation.