The answer would be d: obstacles
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.
Donating clothes working at food banks helping people cross the street
Answer:
Ideas and information are what GIVE you knowledge. Without information you'd pretty much not- know math
Explanation: