The answer is B: While at the school. A transition can be a <em>word or a phrase</em> to lead the reader from one idea to another, or to move to another paragraph. It helps to keep the <em>flow</em> in a piece of writing. Also, it<em> provides a logical</em> <em>connection between the sections</em>. In the example, there is a conjunction (<em>while)</em> as part of the transitional phrase and <em>indicating sequence.</em>
Transferring would be the correct answer.
<span>There are many differences. Greek theater had a chorus, which sang and likely danced. The arrangement of the stage was completely different, featuring a single building with a large entrance on to the stage, a crane to bring divine characters in on a higher level, a dancing area for the chorus, and so on. Actors were all male and performed in masks; there were few actors available for the playwright's use (two or later three could be on stage at a time). Plays were put on at civic/religious festivals, not as standalone productions, and cycles of four plays (three tragedies and a comic satyr play) by the same author were performed. The list could go on for a while.</span>
They are complete sentences. Both have an independent and dependent clause.