Explain why the journalists who interviewed Edward Snowden were surprised by the document that detailed the relationship between the U. S. Government's intelligence gathering agencies and Verizon? What did the document reveal?

The correct answer to this open question is the following.

Unfortunately, you did not attach the text for reference or any other source of the interview.

However, trying to help, we can comment on the following.

Verax was the code name of the secret informer that contact independent filmmaker Laura Poitras. In December 2012, she had contact Washington Post journalist Barton Gellman to investigate more about this secret informant that said that there were major issues with the NSA surveillance. Verax, the secret informant happened to be Edward Snowden, revealing that the National Security Agency (NSA) spied the American citizens. Under the name of PRISM, the agency had been subtracting information from people's accounts from email sites and social media sites.

what are the choices? the multiple choices?

i will answer in the comments after the choices have been said.