PC World - Tiny 802.11b adapter will work with Zire 72, Tungsten T3 handhelds.
Q: Which is the best summary of this article?
Possible answers:
[I] World
[II] Sports
[III] Business
[IV] Science/Tech
I think the answer is

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
[IV]