A functional document, also known as functional specification, is a document that specifies the function that a system must perform, mostly regarded in systems engineering and software development. It typically describes what the system needs by the user, including the requested properties of inputs and outputs. It is somewhat similar to a matching requirements document.
D.
To entertain I believe
Answer:
I believe it is C
Explanation:
I think it is C because they address Matt as he.
Answer:
Start off with dear so and so, address the topic you are talking about, how you want to fix it or love it or have suggestions, why you wanna do what you wanna do with the topic and an ending sentence followed by sincerely your name