Journalists generally support a right to withhold information from grand juries or legislative committees. What is their main argument?

a. This right is essential to protect reporters from self-incrimination.
b. This right is essential to maintain the independence of the press.
c. Without this right, reporters will not be able to get the information they need to keep the public informed.
d. Without this right, journalists will have no ability to shape the content of news stories.

c