Planning a company event has become an easier task with a few mouse clicks on a computer. Sending out a mass email to the members of a company is a quick and efficient
means to assure that everyone is informed. Knowing the number of attendees is another
aspect made easier by providing information via email. To get a proper headcount, the
planner only needs to ask everyone to reply with a basic yes or no. Planning an event this
way prevents the possible confusion that comes from posting a flier in the office, being
unaware of who has seen it, and the problems associated with keeping track of who intends
on attending
What is this article about?

c. to depict the cunningness of the federal soldiers

to eliminate ambiguous remote or broad reference it is necessary to focus on anaphoric reference. by definition "anaphoric reference means that a word in a text refers back to other ideas in the text for its meaning." the references should be clear and leave no room for ambiguity.

in the first case the pronoun it probably refers to the car but it has not been mentioned before so we should replace it for the car. in doing so the statement becomes clear.

in sentence number   two   the pronoun he refers to charles dickens the author. yet, the first half of the sentence is about the book a tale of two cities. to repair this it would be better to rephrase the first half : after i read   a tale of two cities by dickens, he so as to remove the remote reference.