Arguments of any complexity contain lines of argument that, when taken together, might reasonably persuade readers that the thesis has merit. You can think of lines of argument as your reasons. Below, for example, are the main lines of argument that student writer Sam Jacobs used in his paper about the shift from print to online news (see 6g).
CENTRAL CLAIM
Thesis: The shift from print to online news provides unprecedented opportunities for readers to become more engaged with the news, to hold journalists accountable, and to participate as producers, not simply as consumers.
SUPPORTING CLAIMS