Select the correct answer.
Bruno is researching the historical impact of campers' use of undeveloped campsites in Denali Park. His research question is the following: How have
campers in Denali Park impacted non-durable surfaces (ie, vegetation) over the past ten years?
Which keyword or phrase would be best for Bruno to use when searching for sources?
О А. non-durable surfaces in Denali
impact on vegetation in Denali
tips for camping in Denali
OD. past ten years in Denali
OB.
