None of the answers are correct. In theory, there are 4 choices. However, 2 of the choices have the same value. Since a random selection would pick the correct answer 1 in 4 times (25%) it should be 25%. But, since there are 2 answers that meet the 25% value, the correct answer is 1 in 3 chances. However, 33% is not one of the choices. Therefore the answer is 0% since 33% is not one of the choices.