A broken white line in the middle of the road means

A broken white line in the middle of the road, in reference to driving, means that you can cross the line to change lanes once you have signaled and it is safe to do so.  

in which scenario might one be asked to take minute meetings?

answer: b. a student attending an orientation

- "a nonrestrictive clause functions as a modifier to a noun (that is an object, person or concept). these clauses can be described by the following three options: it is set off by comas, it contains a subject and a verbs and it adds nonessential information to the sentence.

for example, in "here is bill gates, who confounded microsoft software company" we can identify "who confounded microsoft software company" as a nonrestrictive clause modifying the noun bill gates. this clause can be describes as a nonrestrictive clause because it is separated by a comma, it adds nonessential information to identify who bill gates is and it must contain both a subject (who) and a verb (confounded)."