Prewriting is the first stage of the writing process, typically followed by drafting, revision, editing and publishing.[1][2][3]
Prewriting can consist of a combination of outlining, diagramming, storyboarding, clustering (for a technique similar to clustering, see mindmapping)
I would suggest the internet, there are tons of websites out there that contain tons of research regarding tourist sites in Alaska. However, since there are some unreliable sites out there, check out travel magazines and etc with a focus on Alaska that might help you!
Answer:
B and A? [I'm not sure about A. It may be D.]