;) giving out medals it was similar to one he had seen in yellowstone national park. (yellowstone national park is underlined) a. common noun b. proper noun c. compound noun d. collective noun

The correct answer is B. proper noun.
Proper nouns are used to denote somebody's name usually (Mark, Mary, Angela, etc.), however, they are not only used for human names, but also for animals, geographic locations, names of rivers, etc. So here, given that Yellowstone is the name of a park, it is a proper noun.