The correct answer is - 96.15%.
The United States of America are composed of 52 confederate states, 50 of which are on the continental part of the United States, and 2 being separated from this part, those two being Alaska and Hawaii.
To get to the percentage we have to multiple the number of states in the continental part (50) by 100, and than divide the result with the total number of states (52).
50 x 100 = 5,000
5,000 / 52 = 96.15