4. What is the author's main purpose in the text?
A to argue that all schools should start later in the day
• B to warn teens about the dangers of staying up late
C to compare the sleep patterns of teens and adults
D to explore what the right amount of sleep is for
teenagers

newbie construction workers preparing to work at a job cite but are first going over safety concerns?

hancock was president of congress when the declaration of independence was adopted and signed. he is primarily remembered by americans for his large, flamboyant signature on the declaration, so much so that "john hancock" became, in the united states, an informal synonym for signature.

explanation:

"a" because he is appealing to logic as oppose to appealing to the audience's emotions.