"Trusts" Like Rockefeller's Standard Oil Trust Were Vulnerable Because They

"Trusts" like Rockefeller's Standard Oil Trust were vulnerable because they:

A) were often too large to earn a profit
B) were forced to spend too much of their money on philanthropic endeavors
C) were appealing targets for prosecution on the grounds of monopoly or restraint of trade
D) controlled companies that had nothing to do with one another
E) paid its various subsidiaries enormous and unjustified profits