There is no underlined word in the sentence given above, so let me answer this question in this manner:
Proper noun indicates the exact name of a person, place or thing while common noun is the general term used to name nouns. In the sentence stated above, the proper nouns are Jeffrey, Capitol, and Washington D.C. and the common noun is tour which may either refer to educational or some other term.
This is the US political system
Federation
Presidential system
Liberal democracy
Federal republic
Constitutional republic
An archetypal hero is the character who is admired because he or she exemplifies things that are important in his or her particular culture. For example, an American hero is expected to be honest, strong, patriotic, and diligent.
I'd say take both numbers to see if one is right or wrong or at least get help on it.
