Under the CPA, if an officer arrests a suspect for a traffic offense, what is the legal status of the suspect's rights to remain silent?

1. The suspect has no right to remain silent if stopped by a traffic officer.
2. The suspect has a constitutional right to remain silent, and anything they say can be used against them in court.
3. They only have the right to remain silent if they are represented by an attorney at the roadside.
4. The right to silence only applies to murder suspects, not traffic violators.