The answer is "<span>Everyone has a side he or she shows to the public and a side he or she keeps private" !((:</span>
Trying to concentrate on what someone says but misunderstanding.
We know that 'migrate' means to move. So since that, we need to add the -ing, and we know that we end up with the meaning "moving".
So migrating means moving from one place to another.
The answer is B. It takes place in the past. Fork Pitt was built in the 1700's, so that is an easy clue that it takes place in the past.