Final answer:
Police must inform a suspect of their Miranda rights following the 'Miranda v. Arizona' decision, which includes the right to remain silent.
Step-by-step explanation:
As a result of the Supreme Court ruling in Miranda v. Arizona (1966), police have to say the following to a suspect: c. You have the right to remain silent. This statement is part of the Miranda rights, which are required to be recited to a suspect in custody before interrogation.
These rights include the right to remain silent to avoid self-incrimination (covered under the Fifth Amendment), the right to consult with a lawyer, the right to have an attorney present during questioning, and the right to court-appointed counsel if the suspect cannot afford one.