The second because of comma placement
He's hoping to convey the similarities and differences of the German government from governments of the past since that is the purpose of making comparisons.
Answer:
It, That, This
Explanation:
<u>It </u>is small and round - talking about something.
<u>That </u>is small and round - pointing at something someone is holding or you can see.
<u>This</u> is small and round - pointing/talking about something you are holding or gesturing towards.