Self-Esteem Friday

Wichita, KS - Some brainiac in Kansas (of all places [sorry Pam]) aced the SAT with a perfect 2400 score. He tells us that if students want to do better on the test, they can go to the official College Board website and sign up for the "Question of the Day" which will come to your e-mail inbox, as if you need that kind of pressure in your life. Here's today's question:

The Official SAT

Question of the Day™

Part of the following sentence is underlined; beneath the sentence are five ways of phrasing the underlined material. Select the option that produces the best sentence. If you think the original phrasing produces a better sentence than any of the alternatives, select choice 1.

Warmer coastal air and water has accelerated melting in Antarctica’s ice shelves and increased the flow of glaciers into the sea.

1. has accelerated melting in Antarctica’s
2. has accelerated Antarctica’s melting
3. having accelerated the melting of Antarctica’s
4. accelerated Antarctica’s melting
5. have accelerated the melting of Antarctica’s

Here's little smarty pants' advice for doing well on the exam: "I found out there's not a secret formula. Obviously, you have to pay attention in classes, take classes that are going to teach you what you need to know — that sort of thing." Thanks, Einstein.
So, what is the correct answer? I wonder if Al Gore knows?
Anyone?
Bueller?