Which of the Following Is Not Cited as a Reason

Which of the following is not cited as a reason for the apparent failure of the Superfund?

A) Finding and suing the responsible parties were very difficult.
B) Cleaning up a site is a complicated and time-consuming task.
C) Environmental lobbyists insisted that the list of sites be increased but not necessarily assigned priorities.
D) Lawyers representing major corporations effectively blocked suits.
E) There was rapid turnover in EPA Superfund managers.