This week's book giveaway is in the OCAJP forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide 1Z0-808 and have Jeanne Boyarsky & Scott Selikoff on-line! See this thread for details.
The right answer is B. If you look at the description of Service Locator, you may note, that all of the attributes in the list are applicable to this pattern. Transfer Object doesn't provide caching. [ August 22, 2005: Message edited by: Sergey Tyulkin ]