Explanation
3412 (B) Represents the best-organized paragraph. The first thing that should be done is to read all the sentences and see if you can easily identify the introduction, supporting or closing sentences.
Sentences 1 and 4 provide specific information, indicating that they are support sentences; while sentences 2 and 3 are very general and could be either introductions or closing sentences. So then you can eliminate an option that starts with 1 or 4 (none) or any option that ends with 1 or 4 (option 1, 3 and 4).
In this specific paragraph you should also notice all the choices start with sentence 3, so we automatically know what the introduction sentence is. Looking at all the options we also know that the second sentence is either 2 or 4. Sentence 4 provides new information, while sentence 2 is a conclusion, providing closure. Remember- a great paragraph introduces the idea (introduction sentences) then has 2-3 supporting the idea (supporting sentences) and then summarizes the information given (closing sentence).
Arranged correctly it should read:
The department of parks and recreation opened its first aquarium in San Beach this week which will be LEED certified. As a LEED-certified building, this aquarium will serve as a model to future buildings. This building will utilize less energy and resources while still being a state of the art facility. All future buildings are going to require this type of certification, and the aquarium is honored to be the first certified.
The correct answer is 3412.