Based on this excerpt, which best explains why some people opposed the usa patriot act?

Privacy and constitutional rights are the major oppositions to the Patriot Act. 

Without the excerpt, it is hard to know what it stated, but many were worried about the privacy of the average citizen and removal of individual rights by the government. The Patriot Act blocks access to rights of trial, counsel, and facing your accuser. It assumes you may be a terrorist or connected to a terrorist and therefore for security much remains confidential. The NSA has the power to gather information about people which infringes on our right to privacy.