Which Is the Most Accurate Statement

Which is the most accurate statement?

A) The Justices of the Supreme Court used the "rule of reason" in the 1920s and 1930s to ensure that the Sherman Act was vigorously enforced.
B) Until the Alcoa Case in 1945,the Supreme Court held that you had to be both big and bad before you were found guilty under the Sherman Act.
C) The Alcoa Case established the precedent that having a near monopoly was not,in itself,illegal.
D) Alcoa lost its case largely because of its anticompetitive behavior rather than that it was very big.