First, we need to figure out what the square root of 12 is. An easy way to do this is by seeing the near numbers. 2^2 is 4, so 7.3 might equal sqrt(12). now, let's go to 7. 7^2=49. That means that sqrt 12 cannot possibly be 7.3.
The correct answer is A, 7.3>sqrt(12)
Answer: Option A would be the best choice.