The Interstate Commerce Act of 1887 was essentially ineffective for the first twenty years after its ...

The Interstate Commerce Act of 1887 was essentially ineffective for the first twenty years after its passage because
 
  a. it did not permit the breaking up of the largest monopolies
  b. the members of the Interstate Commerce Commission were anti-business
  c. the Interstate Commerce Commission had little power and was staffed by members who were pro- big business
  d. the Supreme Court ruled that if a corporation were engaged in manufacturing then it was not subject to the law.
  e. President Cleveland was unwilling to support it..