D is right!!!!!!!!!!!!!!!:)
An instruction manual is an important thing.
H stands for heading
A stands for access
T stands for typography
S stands for space
Heading should be in bold, as there are different features used when writing a document. In the heading area, you should put the major areas to be covered. In important things, they are bolded or italicized. Spacing is also important, as when reading a manual, a user is not wanting everything to be crunched together.
I don’t know what you mean but ok
Answer: "pheromones" .
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<u>Note</u>: "Odorless chemicals" that serve as "signals" to members of one's own species are called: <u> pheromones </u><u /> .
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