During the final stage of the writing process, the author should examine his or her draft carefully to identify any errors in grammar, punctuation, mechanics, or spelling.

During the final stage of the writing​ process, editing, the author should examine his or her draft carefully to identify any errors in​ grammar, punctuation, mechanics​, or spelling.

Explanation:

There are several stages in the process of writing, they are prewriting, shaping, drafting, revising, editing, proofreading, and publishing, During the editing process the writer and editor's purpose is to improve the draft, by making all the necessary changes that include, grammar, spelling, context, syntaxis, selection of words, etc.

vector v such that t( p) = p+ v

for example: in, he, a,from