A. It is surrounded by deciduous forests.
B. It has only two roads leading out of town.
C. It has a population of 630,000 people.
D. It can only be reached by plane or boat
The correct answer is (D).
source, from “Juneau’s Local Area Information” below:
“There are no roads leading into or out of town, so all travelers come by air or water.”
D. It is surrounded by evergreens, population is around 30K, there are zero roads leading in or out of town, hence D is correct.
Not A. It’s coastal, so part is on water. That and it is surrounded by Sitka spruce, a conifer;)