Which Phrase Explains What the Post-Trust Era Is

Which phrase explains what the post-trust era is?

A) a period in which the government no longer allows monopolies or trusts to form
B) a period characterized by the formation of trusts to manage the wealth of businesses
C) a period in which people put more of their trust in big business than in big government
D) a period in which the government allows financial trusts to try to make the economy safer
E) a period in which people have lost the trust they once had in the business community