A high school has only liberal arts and science classes, with more boys than girls and more science classes than arts classes. Based on the above conditions, can you judge that the following statements must be true? ['The total number of boys in the liberal arts class is greater than the total number of girls in the liberal arts class.', 'The total number of boys in science classes is greater than the total number of girls in science classes.', 'The total number of boys in the liberal arts class exceeds the total number of girls in the science class.', 'The total number of boys in science classes is greater than the total number of girls in arts classes.']